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10102331220 = 22351453115879
BaseRepresentation
bin10010110100010010…
…10101011101010100
3222002001022121011120
421122021111131110
5131142144044340
64350240003540
7505226253462
oct113211253524
928061277146
1010102331220
114314558a73
121b5b3005b0
13c4cc690a7
146bb99d832
153e1d734d0
hex25a255754

10102331220 has 48 divisors (see below), whose sum is σ = 28306239360. Its totient is φ = 2692077696.

The previous prime is 10102331203. The next prime is 10102331233. The reversal of 10102331220 is 2213320101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10102331220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29241 + ... + 145119.

It is an arithmetic number, because the mean of its divisors is an integer number (589713320).

Almost surely, 210102331220 is an apocalyptic number.

10102331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102331220 is an abundant number, since it is smaller than the sum of its proper divisors (18203908140).

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

10102331220 is a wasteful number, since it uses less digits than its factorization.

10102331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117344 (or 117342 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10102331220 its reverse (2213320101), we get a palindrome (12315651321).

The spelling of 10102331220 in words is "ten billion, one hundred two million, three hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1453 2906 4359 5812 7265 8718 14530 17436 21795 29060 43590 87180 115879 231758 347637 463516 579395 695274 1158790 1390548 1738185 2317580 3476370 6952740 168372187 336744374 505116561 673488748 841860935 1010233122 1683721870 2020466244 2525582805 3367443740 5051165610 10102331220