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30468609 = 331959393
BaseRepresentation
bin111010000111…
…0101000000001
32010022222002000
41310032220001
530244443414
63005014213
7516656523
oct164165001
963288060
1030468609
1116220576
12a254369
13640a382
144091a13
152a1cb09
hex1d0ea01

30468609 has 16 divisors (see below), whose sum is σ = 47515200. Its totient is φ = 19243008.

The previous prime is 30468593. The next prime is 30468623. The reversal of 30468609 is 90686403.

30468609 is a `hidden beast` number, since 3 + 0 + 46 + 8 + 609 = 666.

It is not a de Polignac number, because 30468609 - 24 = 30468593 is a prime.

It is a super-2 number, since 2×304686092 = 1856672268789762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30468509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29184 + ... + 30209.

It is an arithmetic number, because the mean of its divisors is an integer number (2969700).

Almost surely, 230468609 is an apocalyptic number.

It is an amenable number.

30468609 is a deficient number, since it is larger than the sum of its proper divisors (17046591).

30468609 is a wasteful number, since it uses less digits than its factorization.

30468609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59421 (or 59415 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30468609 is about 5519.8377693552. The cubic root of 30468609 is about 312.3327625706.

The spelling of 30468609 in words is "thirty million, four hundred sixty-eight thousand, six hundred nine".

Divisors: 1 3 9 19 27 57 171 513 59393 178179 534537 1128467 1603611 3385401 10156203 30468609