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2013497964 = 223279707981
BaseRepresentation
bin111100000000011…
…1000101001101100
312012022202021221200
41320000320221230
513110423413324
6531444125500
7100616310312
oct17000705154
95168667850
102013497964
11943626905
12482396890
132611c211a
141515b00b2
15bbb7bec9
hex78038a6c

2013497964 has 36 divisors (see below), whose sum is σ = 5154108960. Its totient is φ = 662669280.

The previous prime is 2013497939. The next prime is 2013497971. The reversal of 2013497964 is 4697943102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351147 + ... + 356834.

Almost surely, 22013497964 is an apocalyptic number.

It is an amenable number.

2013497964 is an abundant number, since it is smaller than the sum of its proper divisors (3140610996).

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

2013497964 is a wasteful number, since it uses less digits than its factorization.

2013497964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708070 (or 708065 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 2013497964 is about 44872.0176056303. The cubic root of 2013497964 is about 1262.7490920983.

The spelling of 2013497964 in words is "two billion, thirteen million, four hundred ninety-seven thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 79 158 237 316 474 711 948 1422 2844 707981 1415962 2123943 2831924 4247886 6371829 8495772 12743658 25487316 55930499 111860998 167791497 223721996 335582994 503374491 671165988 1006748982 2013497964