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382953138 = 2371218963
BaseRepresentation
bin10110110100110…
…110011010110010
3222200121000221120
4112310312122302
51241014000023
6102000003110
712330022311
oct2664663262
9880530846
10382953138
111871923a7
12a8300496
13614533b9
1438c08278
15239478e3
hex16d366b2

382953138 has 16 divisors (see below), whose sum is σ = 766099296. Its totient is φ = 127618880.

The previous prime is 382953127. The next prime is 382953139. The reversal of 382953138 is 831359283.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 382953138.

It is not an unprimeable number, because it can be changed into a prime (382953139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38245 + ... + 47207.

It is an arithmetic number, because the mean of its divisors is an integer number (47881206).

Almost surely, 2382953138 is an apocalyptic number.

382953138 is an abundant number, since it is smaller than the sum of its proper divisors (383146158).

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

382953138 is a wasteful number, since it uses less digits than its factorization.

382953138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16089.

The product of its digits is 155520, while the sum is 42.

The square root of 382953138 is about 19569.1884859848. The cubic root of 382953138 is about 726.1871240137.

The spelling of 382953138 in words is "three hundred eighty-two million, nine hundred fifty-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 7121 8963 14242 17926 21363 26889 42726 53778 63825523 127651046 191476569 382953138