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2012000008 = 23251500001
BaseRepresentation
bin111011111101100…
…1010111100001000
312012012221012010211
41313323022330020
513110033000013
6531352050504
7100600501144
oct16773127410
95165835124
102012000008
119427a3427
12481993a34
13260ab9365
14151300224
15bb98323d
hex77ecaf08

2012000008 has 8 divisors (see below), whose sum is σ = 3772500030. Its totient is φ = 1006000000.

The previous prime is 2011999991. The next prime is 2012000009. The reversal of 2012000008 is 8000002102.

It can be written as a sum of positive squares in only one way, i.e., 1875063204 + 136936804 = 43302^2 + 11702^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2012000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125749993 + ... + 125750008.

Almost surely, 22012000008 is an apocalyptic number.

It is an amenable number.

2012000008 is a deficient number, since it is larger than the sum of its proper divisors (1760500022).

2012000008 is a wasteful number, since it uses less digits than its factorization.

2012000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251500007 (or 251500003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2012000008 is about 44855.3230731872. The cubic root of 2012000008 is about 1262.4358707157.

The spelling of 2012000008 in words is "two billion, twelve million, eight", and thus it is an aban number and an uban number.

Divisors: 1 2 4 8 251500001 503000002 1006000004 2012000008