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379442891 = 2347351011
BaseRepresentation
bin10110100111011…
…101011011001011
3222102222200210102
4112213131123023
51234114133031
6101352440015
712255132332
oct2647353313
9872880712
10379442891
11185205073
12a70a900b
13607c4729
1438572d19
15234a27cb
hex169dd6cb

379442891 has 8 divisors (see below), whose sum is σ = 404365824. Its totient is φ = 355222120.

The previous prime is 379442851. The next prime is 379442923. The reversal of 379442891 is 198244973.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 379442891 - 214 = 379426507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379442851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174425 + ... + 176586.

It is an arithmetic number, because the mean of its divisors is an integer number (50545728).

Almost surely, 2379442891 is an apocalyptic number.

379442891 is a deficient number, since it is larger than the sum of its proper divisors (24922933).

379442891 is a wasteful number, since it uses less digits than its factorization.

379442891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351081.

The product of its digits is 435456, while the sum is 47.

The square root of 379442891 is about 19479.2939040408. The cubic root of 379442891 is about 723.9615038850.

The spelling of 379442891 in words is "three hundred seventy-nine million, four hundred forty-two thousand, eight hundred ninety-one".

Divisors: 1 23 47 1081 351011 8073253 16497517 379442891