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379897990 = 25103368833
BaseRepresentation
bin10110101001001…
…100100010000110
3222110211211001221
4112221030202012
51234223213430
6101410310554
712262036213
oct2651144206
9873754057
10379897990
11185495a8a
12a728845a
1360923914
1438650b0a
152354257a
hex16a4c886

379897990 has 16 divisors (see below), whose sum is σ = 690457248. Its totient is φ = 150483456.

The previous prime is 379897979. The next prime is 379898009. The reversal of 379897990 is 99798973.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183387 + ... + 185446.

It is an arithmetic number, because the mean of its divisors is an integer number (43153578).

Almost surely, 2379897990 is an apocalyptic number.

379897990 is a deficient number, since it is larger than the sum of its proper divisors (310559258).

379897990 is a wasteful number, since it uses less digits than its factorization.

379897990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368943.

The product of its (nonzero) digits is 7715736, while the sum is 61.

The square root of 379897990 is about 19490.9720127037. The cubic root of 379897990 is about 724.2508250008.

The spelling of 379897990 in words is "three hundred seventy-nine million, eight hundred ninety-seven thousand, nine hundred ninety".

Divisors: 1 2 5 10 103 206 515 1030 368833 737666 1844165 3688330 37989799 75979598 189948995 379897990