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379994187 = 3317951721
BaseRepresentation
bin10110101001100…
…100000001001011
3222111000201000210
4112221210001023
51234234303222
6101412332203
712262616526
oct2651440113
9874021023
10379994187
11185551291
12a7314063
1360958641
1438677bbd
1523560d0c
hex16a6404b

379994187 has 16 divisors (see below), whose sum is σ = 529633280. Its totient is φ = 242049600.

The previous prime is 379994177. The next prime is 379994203. The reversal of 379994187 is 781499973.

It is not a de Polignac number, because 379994187 - 215 = 379961419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379994137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18514 + ... + 33207.

It is an arithmetic number, because the mean of its divisors is an integer number (33102080).

Almost surely, 2379994187 is an apocalyptic number.

379994187 is a deficient number, since it is larger than the sum of its proper divisors (149639093).

379994187 is a wasteful number, since it uses less digits than its factorization.

379994187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51834.

The product of its digits is 3429216, while the sum is 57.

The square root of 379994187 is about 19493.4395887437. The cubic root of 379994187 is about 724.3119509509.

The spelling of 379994187 in words is "three hundred seventy-nine million, nine hundred ninety-four thousand, one hundred eighty-seven".

Divisors: 1 3 31 79 93 237 2449 7347 51721 155163 1603351 4085959 4810053 12257877 126664729 379994187