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30076072 = 2313289193
BaseRepresentation
bin111001010111…
…0110010101000
32002121000121121
41302232302220
530144413242
62552345024
7513433225
oct162566250
962530547
1030076072
1115a82664
12a0a5174
1363007c0
143dcc94c
152991667
hex1caeca8

30076072 has 16 divisors (see below), whose sum is σ = 60730740. Its totient is φ = 13881216.

The previous prime is 30076051. The next prime is 30076087. The reversal of 30076072 is 27067003.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 198916 = 5466^2 + 446^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 144493 + ... + 144700.

Almost surely, 230076072 is an apocalyptic number.

It is an amenable number.

30076072 is an abundant number, since it is smaller than the sum of its proper divisors (30654668).

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

30076072 is a wasteful number, since it uses less digits than its factorization.

30076072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289212 (or 289208 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 30076072 is about 5484.1655700754. The cubic root of 30076072 is about 310.9856660164.

The spelling of 30076072 in words is "thirty million, seventy-six thousand, seventy-two".

Divisors: 1 2 4 8 13 26 52 104 289193 578386 1156772 2313544 3759509 7519018 15038036 30076072