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30752424 = 2332427117
BaseRepresentation
bin111010101001…
…1111010101000
32010212101101200
41311103322220
530333034144
63015044200
7522251133
oct165237250
963771350
1030752424
11163a482a
12a370660
1364a9601
14412721a
152a76c69
hex1d53ea8

30752424 has 24 divisors (see below), whose sum is σ = 83288010. Its totient is φ = 10250784.

The previous prime is 30752399. The next prime is 30752467. The reversal of 30752424 is 42425703.

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 10771524 = 4470^2 + 3282^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213487 + ... + 213630.

Almost surely, 230752424 is an apocalyptic number.

It is an amenable number.

30752424 is an abundant number, since it is smaller than the sum of its proper divisors (52535586).

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

30752424 is a wasteful number, since it uses less digits than its factorization.

30752424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427129 (or 427122 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30752424 is about 5545.4868136170. The cubic root of 30752424 is about 313.2995597620.

The spelling of 30752424 in words is "thirty million, seven hundred fifty-two thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 427117 854234 1281351 1708468 2562702 3416936 3844053 5125404 7688106 10250808 15376212 30752424