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382871564 = 22397461523
BaseRepresentation
bin10110110100100…
…010100000001100
3222200102220001022
4112310202200030
51241003342224
6101554133312
712326232425
oct2664424014
9880386038
10382871564
11187137089
12a8281238
136142522a
1438bc664c
152392d65e
hex16d2280c

382871564 has 24 divisors (see below), whose sum is σ = 674457168. Its totient is φ = 190175040.

The previous prime is 382871561. The next prime is 382871581. The reversal of 382871564 is 465178283.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (382871561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731807 + ... + 732329.

It is an arithmetic number, because the mean of its divisors is an integer number (28102382).

Almost surely, 2382871564 is an apocalyptic number.

It is an amenable number.

382871564 is a deficient number, since it is larger than the sum of its proper divisors (291585604).

382871564 is a wasteful number, since it uses less digits than its factorization.

With its successor (382871565) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1383).

With its successor (382871565) it forms an eRAP, since the sums of their prime factors are consecutive (1385 and 1386).

382871564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1383 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 382871564 is about 19567.1041291245. The cubic root of 382871564 is about 726.1355579174.

The spelling of 382871564 in words is "three hundred eighty-two million, eight hundred seventy-one thousand, five hundred sixty-four".

Divisors: 1 2 4 397 461 523 794 922 1046 1588 1844 2092 183017 207631 241103 366034 415262 482206 732068 830524 964412 95717891 191435782 382871564