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30572692 = 2273104701
BaseRepresentation
bin111010010100…
…0000010010100
32010112020211221
41310220002110
530311311232
63011140124
7520602133
oct164500224
963466757
1030572692
1116291797
12a2a4644
136445867
1440bb91a
152a3d897
hex1d28094

30572692 has 12 divisors (see below), whose sum is σ = 54235636. Its totient is φ = 15076800.

The previous prime is 30572687. The next prime is 30572719. The reversal of 30572692 is 29627503.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21123216 + 9449476 = 4596^2 + 3074^2 .

It is a super-2 number, since 2×305726922 = 1869378992253728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52059 + ... + 52642.

Almost surely, 230572692 is an apocalyptic number.

It is an amenable number.

30572692 is a deficient number, since it is larger than the sum of its proper divisors (23662944).

30572692 is a wasteful number, since it uses less digits than its factorization.

30572692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104778 (or 104776 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 30572692 is about 5529.2578163801. The cubic root of 30572692 is about 312.6880088925.

The spelling of 30572692 in words is "thirty million, five hundred seventy-two thousand, six hundred ninety-two".

Divisors: 1 2 4 73 146 292 104701 209402 418804 7643173 15286346 30572692