Search a number
-
+
9953687872 = 261371135229
BaseRepresentation
bin10010100010100100…
…10011100101000000
3221200200121201211101
421101102103211000
5130341121002442
64323410024144
7501442644112
oct112122234500
927620551741
109953687872
114248663027
121b19578054
13c2822384b
146a5d493b2
153d3cb0cb7
hex251493940

9953687872 has 28 divisors (see below), whose sum is σ = 19896040980. Its totient is φ = 4940512256.

The previous prime is 9953687857. The next prime is 9953687879. The reversal of 9953687872 is 2787863599.

It can be written as a sum of positive squares in 2 ways, for example, as 2352638016 + 7601049856 = 48504^2 + 87184^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a pancake number, because a pancake can be divided into 9953687872 parts by 141093 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9953687879) 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, 558847 + ... + 576382.

Almost surely, 29953687872 is an apocalyptic number.

It is an amenable number.

9953687872 is a deficient number, since it is larger than the sum of its proper divisors (9942353108).

9953687872 is a wasteful number, since it uses less digits than its factorization.

9953687872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135378 (or 1135368 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The square root of 9953687872 is about 99768.1706357293. The cubic root of 9953687872 is about 2151.1036606544.

The spelling of 9953687872 in words is "nine billion, nine hundred fifty-three million, six hundred eighty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 137 274 548 1096 2192 4384 8768 1135229 2270458 4540916 9081832 18163664 36327328 72654656 155526373 311052746 622105492 1244210984 2488421968 4976843936 9953687872