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31948614372 = 2232662384531
BaseRepresentation
bin11101110000010010…
…010010101011100100
310001110112221202202210
4131300102102223210
51010412321124442
622402121403420
72210500512213
oct356022225344
9101415852683
1031948614372
1112605183934
126237639570
133021cba45c
14179116907a
15c6ec3b19c
hex770492ae4

31948614372 has 12 divisors (see below), whose sum is σ = 74546766896. Its totient is φ = 10649538120.

The previous prime is 31948614371. The next prime is 31948614389. The reversal of 31948614372 is 27341684913.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31948614371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331192254 + ... + 1331192277.

Almost surely, 231948614372 is an apocalyptic number.

It is an amenable number.

31948614372 is an abundant number, since it is smaller than the sum of its proper divisors (42598152524).

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

31948614372 is a wasteful number, since it uses less digits than its factorization.

31948614372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662384538 (or 2662384536 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The spelling of 31948614372 in words is "thirty-one billion, nine hundred forty-eight million, six hundred fourteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 2662384531 5324769062 7987153593 10649538124 15974307186 31948614372