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102431112994 = 2767257424909
BaseRepresentation
bin101111101100101011…
…1101011111100100010
3100210101121012200022201
41133121113223330202
53134234331103434
6115020050123414
710254224044330
oct1373127537442
9323347180281
10102431112994
113a4937692a1
1217a27b8056a
13987539cb42
144d59c9cb50
1529e78a9614
hex17d95ebf22

102431112994 has 32 divisors (see below), whose sum is σ = 178910904960. Its totient is φ = 43075473408.

The previous prime is 102431112991. The next prime is 102431113027. The reversal of 102431112994 is 499211134201.

It is not an unprimeable number, because it can be changed into a prime (102431112991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28612 + ... + 453520.

It is an arithmetic number, because the mean of its divisors is an integer number (5590965780).

Almost surely, 2102431112994 is an apocalyptic number.

102431112994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102431112994 is a deficient number, since it is larger than the sum of its proper divisors (76479791966).

102431112994 is a wasteful number, since it uses less digits than its factorization.

102431112994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425242.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 102431112994 in words is "one hundred two billion, four hundred thirty-one million, one hundred twelve thousand, nine hundred ninety-four".

Divisors: 1 2 7 14 67 134 257 469 514 938 1799 3598 17219 34438 120533 241066 424909 849818 2974363 5948726 28468903 56937806 109201613 199282321 218403226 398564642 764411291 1528822582 7316508071 14633016142 51215556497 102431112994