Search a number
-
+
31983088132 = 2219229763757
BaseRepresentation
bin11101110010010101…
…110011001000000100
310001112221211012212201
4131302111303020010
51011000132310012
622405352324244
72211366522622
oct356225631004
9101487735781
1031983088132
111262268a546
1262470a3684
13302919a828
141795980512
15c72c9a857
hex772573204

31983088132 has 36 divisors (see below), whose sum is σ = 61108277580. Its totient is φ = 14627454912.

The previous prime is 31983088099. The next prime is 31983088147. The reversal of 31983088132 is 23188038913.

It can be written as a sum of positive squares in 2 ways, for example, as 6656275396 + 25326812736 = 81586^2 + 159144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340003 + ... + 423754.

It is an arithmetic number, because the mean of its divisors is an integer number (1697452155).

Almost surely, 231983088132 is an apocalyptic number.

It is an amenable number.

31983088132 is a deficient number, since it is larger than the sum of its proper divisors (29125189448).

31983088132 is a wasteful number, since it uses less digits than its factorization.

31983088132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763828 (or 763807 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 31983088132 in words is "thirty-one billion, nine hundred eighty-three million, eighty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 19 29 38 58 76 116 361 551 722 1102 1444 2204 10469 20938 41876 763757 1527514 3055028 14511383 22148953 29022766 44297906 58045532 88595812 275716277 420830107 551432554 841660214 1102865108 1683320428 7995772033 15991544066 31983088132