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102931085436 = 22337231826769
BaseRepresentation
bin101111111011100101…
…0111011100001111100
3100211200102222220120120
41133313022323201330
53141300324213221
6115141430214540
710302504535044
oct1376712734174
9324612886516
10102931085436
113a71aa06a63
1217b474b4450
139924b4551a
144da6448724
152a267195c6
hex17f72bb87c

102931085436 has 24 divisors (see below), whose sum is σ = 246663683280. Its totient is φ = 33383054592.

The previous prime is 102931085407. The next prime is 102931085479. The reversal of 102931085436 is 634580139201.

It is a congruent 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, 115912941 + ... + 115913828.

It is an arithmetic number, because the mean of its divisors is an integer number (10277653470).

Almost surely, 2102931085436 is an apocalyptic number.

It is an amenable number.

102931085436 is an abundant number, since it is smaller than the sum of its proper divisors (143732597844).

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

102931085436 is a wasteful number, since it uses less digits than its factorization.

102931085436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231826813 (or 231826811 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 102931085436 in words is "one hundred two billion, nine hundred thirty-one million, eighty-five thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 231826769 463653538 695480307 927307076 1390960614 2781921228 8577590453 17155180906 25732771359 34310361812 51465542718 102931085436