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30401864 = 2337271379
BaseRepresentation
bin111001111111…
…0010101001000
32010012120111222
41303332111020
530240324424
63003341212
7516261113
oct163762510
963176458
1030401864
1116185409
12a221808
1363b5b8c
14407557a
152a07e5e
hex1cfe548

30401864 has 32 divisors (see below), whose sum is σ = 58915200. Its totient is φ = 14696640.

The previous prime is 30401857. The next prime is 30401867. The reversal of 30401864 is 46810403.

It is not an unprimeable number, because it can be changed into a prime (30401867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80027 + ... + 80405.

It is an arithmetic number, because the mean of its divisors is an integer number (1841100).

Almost surely, 230401864 is an apocalyptic number.

It is an amenable number.

30401864 is a deficient number, since it is larger than the sum of its proper divisors (28513336).

30401864 is a wasteful number, since it uses less digits than its factorization.

30401864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30401864 is about 5513.7885342113. The cubic root of 30401864 is about 312.1045288594.

The spelling of 30401864 in words is "thirty million, four hundred one thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 37 74 148 271 296 379 542 758 1084 1516 2168 3032 10027 14023 20054 28046 40108 56092 80216 102709 112184 205418 410836 821672 3800233 7600466 15200932 30401864