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38630956 = 22713106129
BaseRepresentation
bin1001001101011…
…1011000101100
32200200122201011
42103113120230
534342142311
63455555004
7646233460
oct223273054
980618634
1038630956
111a896011
1210b2ba64
138007670
1451b84a0
1535d1321
hex24d762c

38630956 has 24 divisors (see below), whose sum is σ = 83205920. Its totient is φ = 15282432.

The previous prime is 38630951. The next prime is 38630957. The reversal of 38630956 is 65903683.

38630956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×386309562 = 2984701522947872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38630951) 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, 52701 + ... + 53428.

Almost surely, 238630956 is an apocalyptic number.

It is an amenable number.

38630956 is an abundant number, since it is smaller than the sum of its proper divisors (44574964).

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

38630956 is a wasteful number, since it uses less digits than its factorization.

38630956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106153 (or 106151 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 38630956 is about 6215.3805997702. The cubic root of 38630956 is about 338.0480890461.

The spelling of 38630956 in words is "thirty-eight million, six hundred thirty thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 106129 212258 424516 742903 1379677 1485806 2759354 2971612 5518708 9657739 19315478 38630956