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901981164 = 223710737871
BaseRepresentation
bin110101110000110…
…010001111101100
32022212020101112210
4311300302033230
53321401344124
6225300330420
731231466460
oct6560621754
92285211483
10901981164
11423165887
122120a3a10
13114b3b386
1487b144a0
15542bda29
hex35c323ec

901981164 has 24 divisors (see below), whose sum is σ = 2405283328. Its totient is φ = 257708880.

The previous prime is 901981163. The next prime is 901981187. The reversal of 901981164 is 461189109.

It is not an unprimeable number, because it can be changed into a prime (901981163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5368852 + ... + 5369019.

Almost surely, 2901981164 is an apocalyptic number.

It is an amenable number.

901981164 is an abundant number, since it is smaller than the sum of its proper divisors (1503302164).

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

901981164 is a wasteful number, since it uses less digits than its factorization.

901981164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10737885 (or 10737883 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 901981164 is about 30033.0012486265. The cubic root of 901981164 is about 966.1973071929.

The spelling of 901981164 in words is "nine hundred one million, nine hundred eighty-one thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 10737871 21475742 32213613 42951484 64427226 75165097 128854452 150330194 225495291 300660388 450990582 901981164