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30675672 = 233447339
BaseRepresentation
bin111010100000…
…1001011011000
32010201111010000
41311001023120
530323110142
63013253000
7521511306
oct165011330
963644100
1030675672
11163520a5
12a334160
1364806b1
144107276
152a5e14c
hex1d412d8

30675672 has 40 divisors (see below), whose sum is σ = 85922100. Its totient is φ = 10225008.

The previous prime is 30675653. The next prime is 30675677. The reversal of 30675672 is 27657603.

It is a happy number.

30675672 is a `hidden beast` number, since 30 + 67 + 567 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30675677) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 23022 + ... + 24317.

Almost surely, 230675672 is an apocalyptic number.

It is an amenable number.

30675672 is an abundant number, since it is smaller than the sum of its proper divisors (55246428).

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

30675672 is a wasteful number, since it uses less digits than its factorization.

30675672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47357 (or 47344 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 30675672 is about 5538.5622683148. The cubic root of 30675672 is about 313.0386979342.

The spelling of 30675672 in words is "thirty million, six hundred seventy-five thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 47339 94678 142017 189356 284034 378712 426051 568068 852102 1136136 1278153 1704204 2556306 3408408 3834459 5112612 7668918 10225224 15337836 30675672