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12634131442 = 267283333161
BaseRepresentation
bin10111100010000110…
…11000101111110010
31012121111100101011011
423301003120233302
5201333314201232
65445401141134
7625041226312
oct136103305762
935544311134
1012634131442
1153a3701a49
12254718a7aa
131264650a2a
1487bd2b442
154de281547
hex2f10d8bf2

12634131442 has 16 divisors (see below), whose sum is σ = 19302073632. Its totient is φ = 6200773920.

The previous prime is 12634131421. The next prime is 12634131457. The reversal of 12634131442 is 24413143621.

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, 128659 + ... + 204502.

It is an arithmetic number, because the mean of its divisors is an integer number (1206379602).

Almost surely, 212634131442 is an apocalyptic number.

12634131442 is a deficient number, since it is larger than the sum of its proper divisors (6667942190).

12634131442 is a wasteful number, since it uses less digits than its factorization.

12634131442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333513.

The product of its digits is 13824, while the sum is 31.

The spelling of 12634131442 in words is "twelve billion, six hundred thirty-four million, one hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 67 134 283 566 18961 37922 333161 666322 22321787 44643574 94284563 188569126 6317065721 12634131442