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10102102220 = 225772157873
BaseRepresentation
bin10010110100010000…
…11101100011001100
3222002000212222001002
421122020131203030
5131142114232340
64350231035432
7505224311030
oct113210354314
928060788032
1010102102220
114314411a11
121b5b20bb78
13c4cbb8aa2
146bb9401c0
153e1d2a715
hex25a21d8cc

10102102220 has 24 divisors (see below), whose sum is σ = 24245045664. Its totient is φ = 3463577856.

The previous prime is 10102102211. The next prime is 10102102247. The reversal of 10102102220 is 2220120101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36078797 + ... + 36079076.

It is an arithmetic number, because the mean of its divisors is an integer number (1010210236).

Almost surely, 210102102220 is an apocalyptic number.

10102102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102102220 is an abundant number, since it is smaller than the sum of its proper divisors (14142943444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10102102220 is a wasteful number, since it uses less digits than its factorization.

10102102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72157889 (or 72157887 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10102102220 its reverse (2220120101), we get a palindrome (12322222321).

The spelling of 10102102220 in words is "ten billion, one hundred two million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 72157873 144315746 288631492 360789365 505105111 721578730 1010210222 1443157460 2020420444 2525525555 5051051110 10102102220