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379391052 = 22331615921
BaseRepresentation
bin10110100111010…
…000110001001100
3222102220001200110
4112213100301030
51234111003202
6101351400020
712254525235
oct2647206114
9872801613
10379391052
1118517a127
12a7083010
13607a6c61
143855c08c
152349226c
hex169d0c4c

379391052 has 12 divisors (see below), whose sum is σ = 885245816. Its totient is φ = 126463680.

The previous prime is 379391039. The next prime is 379391053. The reversal of 379391052 is 250193973.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 379391052.

It is not an unprimeable number, because it can be changed into a prime (379391053) 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 3 ways as a sum of consecutive naturals, for example, 15807949 + ... + 15807972.

Almost surely, 2379391052 is an apocalyptic number.

It is an amenable number.

379391052 is an abundant number, since it is smaller than the sum of its proper divisors (505854764).

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

379391052 is a wasteful number, since it uses less digits than its factorization.

379391052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31615928 (or 31615926 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 379391052 is about 19477.9632405444. The cubic root of 379391052 is about 723.9285334868.

The spelling of 379391052 in words is "three hundred seventy-nine million, three hundred ninety-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 31615921 63231842 94847763 126463684 189695526 379391052