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379868831 = 616361637
BaseRepresentation
bin10110101001000…
…101011010011111
3222110210100001222
4112221011122133
51234221300311
6101405523555
712261555206
oct2651053237
9873710058
10379868831
11185476091
12a72735bb
1360913574
143864423d
1523538adb
hex16a4569f

379868831 has 4 divisors (see below), whose sum is σ = 379936632. Its totient is φ = 379801032.

The previous prime is 379868809. The next prime is 379868849. The reversal of 379868831 is 138868973.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 379868831 - 222 = 375674527 is a prime.

It is a super-2 number, since 2×3798688312 = 288600657530613122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379868231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24656 + ... + 36981.

It is an arithmetic number, because the mean of its divisors is an integer number (94984158).

Almost surely, 2379868831 is an apocalyptic number.

379868831 is a deficient number, since it is larger than the sum of its proper divisors (67801).

379868831 is an equidigital number, since it uses as much as digits as its factorization.

379868831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67800.

The product of its digits is 1741824, while the sum is 53.

The square root of 379868831 is about 19490.2239853728. The cubic root of 379868831 is about 724.2322946139.

The spelling of 379868831 in words is "three hundred seventy-nine million, eight hundred sixty-eight thousand, eight hundred thirty-one".

Divisors: 1 6163 61637 379868831