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31232032132 = 2271115429719
BaseRepresentation
bin11101000101100100…
…101111110110000100
32222121121120121201211
4131011210233312010
51002430400012012
622203042501204
72153646615160
oct350544576604
988547517654
1031232032132
1112277739004
126077664804
132c396c34b2
141723d15ca0
15c2bd906a7
hex74592fd84

31232032132 has 12 divisors (see below), whose sum is σ = 62464064320. Its totient is φ = 13385156616.

The previous prime is 31232032127. The next prime is 31232032177. The reversal of 31232032132 is 23123023213.

31232032132 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557714832 + ... + 557714887.

Almost surely, 231232032132 is an apocalyptic number.

It is an amenable number.

31232032132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31232032132 is a wasteful number, since it uses less digits than its factorization.

31232032132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115429730 (or 1115429728 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31232032132 its reverse (23123023213), we get a palindrome (54355055345).

The spelling of 31232032132 in words is "thirty-one billion, two hundred thirty-two million, thirty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 1115429719 2230859438 4461718876 7808008033 15616016066 31232032132