Search a number
-
+
31955801484 = 2232662983457
BaseRepresentation
bin11101110000101101…
…101101010110001100
310001111001110220122010
4131300231231112030
51010421141121414
622402535421220
72210615554665
oct356055552614
9101431426563
1031955801484
11126092426a2
126239b24810
133023635899
1417920ba36c
15c706aa959
hex770b6d58c

31955801484 has 12 divisors (see below), whose sum is σ = 74563536824. Its totient is φ = 10651933824.

The previous prime is 31955801477. The next prime is 31955801489. The reversal of 31955801484 is 48410855913.

It is a happy number.

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 (31955801489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331491717 + ... + 1331491740.

Almost surely, 231955801484 is an apocalyptic number.

It is an amenable number.

31955801484 is an abundant number, since it is smaller than the sum of its proper divisors (42607735340).

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

31955801484 is a wasteful number, since it uses less digits than its factorization.

31955801484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662983464 (or 2662983462 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 31955801484 in words is "thirty-one billion, nine hundred fifty-five million, eight hundred one thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 2662983457 5325966914 7988950371 10651933828 15977900742 31955801484