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102430186205 = 5313074215113
BaseRepresentation
bin101111101100101010…
…0001001101011011101
3100210101112110121000012
41133121110021223131
53134234111424310
6115020014213005
710254213134324
oct1373124115335
9323345417005
10102430186205
113a493195a56
1217a277b4165
139875137049
144d59adb0bb
1529e7774c05
hex17d9509add

102430186205 has 32 divisors (see below), whose sum is σ = 127621874688. Its totient is φ = 78839308800.

The previous prime is 102430186193. The next prime is 102430186217. The reversal of 102430186205 is 502681034201.

It is an interprime number because it is at equal distance from previous prime (102430186193) and next prime (102430186217).

It is not a de Polignac number, because 102430186205 - 228 = 102161750749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20030729 + ... + 20035841.

It is an arithmetic number, because the mean of its divisors is an integer number (3988183584).

Almost surely, 2102430186205 is an apocalyptic number.

It is an amenable number.

102430186205 is a deficient number, since it is larger than the sum of its proper divisors (25191688483).

102430186205 is a wasteful number, since it uses less digits than its factorization.

102430186205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 102430186205 in words is "one hundred two billion, four hundred thirty million, one hundred eighty-six thousand, two hundred five".

Divisors: 1 5 31 155 307 421 1535 2105 5113 9517 13051 25565 47585 65255 129247 158503 646235 792515 1569691 2152573 4006657 7848455 10762865 20033285 48660421 66729763 243302105 333648815 660839911 3304199555 20486037241 102430186205