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30758032 = 2417113081
BaseRepresentation
bin111010101010…
…1010010010000
32010212200002101
41311111102100
530333224112
63015130144
7522303364
oct165252220
963780071
1030758032
11163a8a68
12a373954
1364ac026
1441292a4
152a78757
hex1d55490

30758032 has 20 divisors (see below), whose sum is σ = 63099756. Its totient is φ = 14474240.

The previous prime is 30757999. The next prime is 30758033. The reversal of 30758032 is 23085703.

It can be written as a sum of positive squares in 2 ways, for example, as 21123216 + 9634816 = 4596^2 + 3104^2 .

It is not an unprimeable number, because it can be changed into a prime (30758033) 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 3 ways as a sum of consecutive naturals, for example, 56269 + ... + 56812.

Almost surely, 230758032 is an apocalyptic number.

It is an amenable number.

30758032 is an abundant number, since it is smaller than the sum of its proper divisors (32341724).

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

30758032 is a wasteful number, since it uses less digits than its factorization.

30758032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113106 (or 113100 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30758032 is about 5545.9924269692. The cubic root of 30758032 is about 313.3186029995.

The spelling of 30758032 in words is "thirty million, seven hundred fifty-eight thousand, thirty-two".

Divisors: 1 2 4 8 16 17 34 68 136 272 113081 226162 452324 904648 1809296 1922377 3844754 7689508 15379016 30758032