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30107628 = 22321944017
BaseRepresentation
bin111001011011…
…0011111101100
32002122121220100
41302312133230
530201421003
62553151100
7513624225
oct162663754
962577810
1030107628
1115aa4341
12a0bb490
136311c85
143dda24c
15299aba3
hex1cb67ec

30107628 has 36 divisors (see below), whose sum is σ = 80112760. Its totient is φ = 9507456.

The previous prime is 30107591. The next prime is 30107633. The reversal of 30107628 is 82670103.

30107628 is a `hidden beast` number, since 30 + 1 + 0 + 7 + 628 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21325 + ... + 22692.

Almost surely, 230107628 is an apocalyptic number.

30107628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30107628 is an abundant number, since it is smaller than the sum of its proper divisors (50005132).

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

30107628 is a wasteful number, since it uses less digits than its factorization.

30107628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44046 (or 44041 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30107628 is about 5487.0418259751. The cubic root of 30107628 is about 311.0943906925.

The spelling of 30107628 in words is "thirty million, one hundred seven thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 44017 88034 132051 176068 264102 396153 528204 792306 836323 1584612 1672646 2508969 3345292 5017938 7526907 10035876 15053814 30107628