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102031102230 = 23529117277129
BaseRepresentation
bin101111100000110000…
…1110001000100010110
3100202100201112000201020
41133001201301010112
53132424430232410
6114512240342010
710241266026231
oct1370141610426
9322321460636
10102031102230
113a2a8996292
1217936014906
139810556695
144d1cad4418
1529c26e2a70
hex17c1871116

102031102230 has 32 divisors (see below), whose sum is σ = 253318600800. Its totient is φ = 26270076672.

The previous prime is 102031102223. The next prime is 102031102267. The reversal of 102031102230 is 32201130201.

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

It is a Curzon number.

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, 58637695 + ... + 58639434.

It is an arithmetic number, because the mean of its divisors is an integer number (7916206275).

Almost surely, 2102031102230 is an apocalyptic number.

102031102230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102031102230 is an abundant number, since it is smaller than the sum of its proper divisors (151287498570).

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

102031102230 is a wasteful number, since it uses less digits than its factorization.

102031102230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117277168.

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

Adding to 102031102230 its reverse (32201130201), we get a palindrome (134232232431).

The spelling of 102031102230 in words is "one hundred two billion, thirty-one million, one hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 870 117277129 234554258 351831387 586385645 703662774 1172771290 1759156935 3401036741 3518313870 6802073482 10203110223 17005183705 20406220446 34010367410 51015551115 102031102230