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38130657 = 316997481
BaseRepresentation
bin1001000101110…
…1001111100001
32122202020102120
42101131033201
534230140112
63441134453
7642051045
oct221351741
978666376
1038130657
111a584144
121092a429
137b90a26
1450c8025
153532e8c
hex245d3e1

38130657 has 8 divisors (see below), whose sum is σ = 50877600. Its totient is φ = 25402080.

The previous prime is 38130649. The next prime is 38130731. The reversal of 38130657 is 75603183.

It is a happy number.

38130657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38130657 - 23 = 38130649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38130457) 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, 1357 + ... + 8837.

It is an arithmetic number, because the mean of its divisors is an integer number (6359700).

Almost surely, 238130657 is an apocalyptic number.

It is an amenable number.

38130657 is a deficient number, since it is larger than the sum of its proper divisors (12746943).

38130657 is a wasteful number, since it uses less digits than its factorization.

38130657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 38130657 is about 6175.0025910926. The cubic root of 38130657 is about 336.5824206200.

The spelling of 38130657 in words is "thirty-eight million, one hundred thirty thousand, six hundred fifty-seven".

Divisors: 1 3 1699 5097 7481 22443 12710219 38130657