Search a number
-
+
31049022864 = 2435581115903
BaseRepresentation
bin11100111010101010…
…100111110110010000
32222010212012210012210
4130322222213312100
51002042022212424
622132544152120
72146265224356
oct347252476620
988125183183
1031049022864
1112193400482
126026308640
132c0a8079a2
1417078b77d6
15c1ac90729
hex73aaa7d90

31049022864 has 40 divisors (see below), whose sum is σ = 80225039872. Its totient is φ = 10347730560.

The previous prime is 31049022859. The next prime is 31049022871. The reversal of 31049022864 is 46822094013.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 209937 + ... + 325839.

Almost surely, 231049022864 is an apocalyptic number.

It is an amenable number.

31049022864 is an abundant number, since it is smaller than the sum of its proper divisors (49176017008).

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

31049022864 is a wasteful number, since it uses less digits than its factorization.

31049022864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121495 (or 121489 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 31049022864 in words is "thirty-one billion, forty-nine million, twenty-two thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 5581 11162 16743 22324 33486 44648 66972 89296 115903 133944 231806 267888 347709 463612 695418 927224 1390836 1854448 2781672 5563344 646854643 1293709286 1940563929 2587418572 3881127858 5174837144 7762255716 10349674288 15524511432 31049022864