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30535188 = 2238928591
BaseRepresentation
bin111010001111…
…0111000010100
32010110100101220
41310132320110
530304111223
63010250340
7520354605
oct164367024
963410356
1030535188
11162665a2
12a2869b0
136431778
1440abdac
152a326e3
hex1d1ee14

30535188 has 24 divisors (see below), whose sum is σ = 72051840. Its totient is φ = 10063680.

The previous prime is 30535177. The next prime is 30535189. The reversal of 30535188 is 88153503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30535189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13228 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (3002160).

Almost surely, 230535188 is an apocalyptic number.

It is an amenable number.

30535188 is an abundant number, since it is smaller than the sum of its proper divisors (41516652).

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

30535188 is a wasteful number, since it uses less digits than its factorization.

30535188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28687 (or 28685 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 30535188 is about 5525.8653620949. The cubic root of 30535188 is about 312.5600968154.

The spelling of 30535188 in words is "thirty million, five hundred thirty-five thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 28591 57182 85773 114364 171546 343092 2544599 5089198 7633797 10178396 15267594 30535188