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999999904 = 2531249997
BaseRepresentation
bin111011100110101…
…100100110100000
32120200200020222111
4323212230212200
54021444444104
6243121245104
733531600421
oct7346544640
92520606874
10999999904
11473523802
1223aa93794
1312c23a127
1496b4b648
155cbd1404
hex3b9ac9a0

999999904 has 12 divisors (see below), whose sum is σ = 1968749874. Its totient is φ = 499999936.

The previous prime is 999999893. The next prime is 999999929. The reversal of 999999904 is 409999999.

999999904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 947408400 + 52591504 = 30780^2 + 7252^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 999999904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15624967 + ... + 15625030.

Almost surely, 2999999904 is an apocalyptic number.

It is an amenable number.

999999904 is a deficient number, since it is larger than the sum of its proper divisors (968749970).

999999904 is a wasteful number, since it uses less digits than its factorization.

999999904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31250007 (or 31249999 counting only the distinct ones).

The product of its (nonzero) digits is 19131876, while the sum is 67.

The square root of 999999904 is about 31622.7750837905. The cubic root of 999999904 is about 999.9999680000. Note that the first 4 decimals are identical.

The spelling of 999999904 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred four".

Divisors: 1 2 4 8 16 32 31249997 62499994 124999988 249999976 499999952 999999904