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31321234707 = 371787734551
BaseRepresentation
bin11101001010111001…
…000001110100010011
32222211211102120122220
4131022321001310103
51003121214002312
622215550432123
72156112050040
oct351271016423
988754376586
1031321234707
1112313025244
1260a1502643
132c52026499
141731ad61c7
15c34b10c8c
hex74ae41d13

31321234707 has 16 divisors (see below), whose sum is σ = 50535101952. Its totient is φ = 16845033600.

The previous prime is 31321234669. The next prime is 31321234751. The reversal of 31321234707 is 70743212313.

It is not a de Polignac number, because 31321234707 - 224 = 31304457491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31321234807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43866919 + ... + 43867632.

It is an arithmetic number, because the mean of its divisors is an integer number (3158443872).

Almost surely, 231321234707 is an apocalyptic number.

31321234707 is a deficient number, since it is larger than the sum of its proper divisors (19213867245).

31321234707 is a wasteful number, since it uses less digits than its factorization.

31321234707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87734578.

The product of its (nonzero) digits is 21168, while the sum is 33.

The spelling of 31321234707 in words is "thirty-one billion, three hundred twenty-one million, two hundred thirty-four thousand, seven hundred seven".

Divisors: 1 3 7 17 21 51 119 357 87734551 263203653 614141857 1491487367 1842425571 4474462101 10440411569 31321234707