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102643357107 = 3195233443137
BaseRepresentation
bin101111110011000000…
…1010101010110110011
3100210221101120210111210
41133212001111112303
53140203144411412
6115053111211203
710262412065664
oct1374601252663
9323841523453
10102643357107
113a592554455
1217a87076b03
1398aa353285
144d7a14b36b
152a0b33183c
hex17e60555b3

102643357107 has 16 divisors (see below), whose sum is σ = 144336344960. Its totient is φ = 64703411712.

The previous prime is 102643357093. The next prime is 102643357123. The reversal of 102643357107 is 701753346201.

It is not a de Polignac number, because 102643357107 - 27 = 102643356979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102643357907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691758 + ... + 1751379.

It is an arithmetic number, because the mean of its divisors is an integer number (9021021560).

Almost surely, 2102643357107 is an apocalyptic number.

102643357107 is a deficient number, since it is larger than the sum of its proper divisors (41692987853).

102643357107 is a wasteful number, since it uses less digits than its factorization.

102643357107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443682.

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 102643357107 in words is "one hundred two billion, six hundred forty-three million, three hundred fifty-seven thousand, one hundred seven".

Divisors: 1 3 19 57 523 1569 9937 29811 3443137 10329411 65419603 196258809 1800760651 5402281953 34214452369 102643357107