101020

Appears in sequences

• Numbers whose base-10 representation has exactly 6 runs.at n=9A043642
• Multiples of 4 whose digits add to 4.at n=29A063997
• 5-Smith numbers.at n=18A103126
• Numbers n such that sum of decimal digits of n equals number of prime divisors of n counted with multiplicity and sum of distinct decimal digits of n equals number of distinct primes dividing n.at n=15A280911
• Records in A073053 starting from a(1).at n=31A305395
• Numbers with digits in {0,1,2} such that every other digit is strictly less than its neighbors.at n=33A306105