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30464172 = 22323722871
BaseRepresentation
bin111010000110…
…1100010101100
32010022201222200
41310031202230
530244323142
63004541500
7516640554
oct164154254
963281880
1030464172
1116218202
12a251890
13640834b
144090164
152a1b64c
hex1d0d8ac

30464172 has 36 divisors (see below), whose sum is σ = 79091376. Its totient is φ = 9879840.

The previous prime is 30464149. The next prime is 30464173. The reversal of 30464172 is 27146403.

30464172 is a `hidden beast` number, since 30 + 464 + 172 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (30464173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10104 + ... + 12767.

Almost surely, 230464172 is an apocalyptic number.

It is an amenable number.

30464172 is an abundant number, since it is smaller than the sum of its proper divisors (48627204).

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

30464172 is a wasteful number, since it uses less digits than its factorization.

30464172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22918 (or 22913 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30464172 is about 5519.4358407359. The cubic root of 30464172 is about 312.3176006516.

The spelling of 30464172 in words is "thirty million, four hundred sixty-four thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 22871 45742 68613 91484 137226 205839 274452 411678 823356 846227 1692454 2538681 3384908 5077362 7616043 10154724 15232086 30464172