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30527904 = 2531128909
BaseRepresentation
bin111010001110…
…1000110100000
32010102222102010
41310131012200
530303343104
63010152520
7520324431
oct164350640
963388363
1030527904
1116261080
12a282740
13642b364
1440a9488
152a30489
hex1d1d1a0

30527904 has 48 divisors (see below), whose sum is σ = 87423840. Its totient is φ = 9250560.

The previous prime is 30527899. The next prime is 30527929. The reversal of 30527904 is 40972503.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13399 + ... + 15510.

It is an arithmetic number, because the mean of its divisors is an integer number (1821330).

Almost surely, 230527904 is an apocalyptic number.

It is an amenable number.

30527904 is an abundant number, since it is smaller than the sum of its proper divisors (56895936).

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

30527904 is a wasteful number, since it uses less digits than its factorization.

30527904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28933 (or 28925 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30527904 is about 5525.2062404946. The cubic root of 30527904 is about 312.5352416789.

The spelling of 30527904 in words is "thirty million, five hundred twenty-seven thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 28909 57818 86727 115636 173454 231272 317999 346908 462544 635998 693816 925088 953997 1271996 1387632 1907994 2543992 2775264 3815988 5087984 7631976 10175968 15263952 30527904