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1904012992 = 2672607147
BaseRepresentation
bin111000101111100…
…1110111011000000
311220200201212210201
41301133032323000
512344411403432
6512533334544
765116562200
oct16137167300
94820655721
101904012992
11897847162
12451797454
1324460a30b
14140c30400
15b2251ee7
hex717ceec0

1904012992 has 42 divisors (see below), whose sum is σ = 4395144372. Its totient is φ = 816004224.

The previous prime is 1904012987. The next prime is 1904012993. The reversal of 1904012992 is 2992104091.

It is not an unprimeable number, because it can be changed into a prime (1904012993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300438 + ... + 306709.

Almost surely, 21904012992 is an apocalyptic number.

It is an amenable number.

1904012992 is an abundant number, since it is smaller than the sum of its proper divisors (2491131380).

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

1904012992 is an equidigital number, since it uses as much as digits as its factorization.

1904012992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607173 (or 607156 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1904012992 is about 43634.9973301248. The cubic root of 1904012992 is about 1239.4337060395.

The spelling of 1904012992 in words is "one billion, nine hundred four million, twelve thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 392 448 784 1568 3136 607147 1214294 2428588 4250029 4857176 8500058 9714352 17000116 19428704 29750203 34000232 38857408 59500406 68000464 119000812 136000928 238001624 272001856 476003248 952006496 1904012992