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379381 = 735197
BaseRepresentation
bin1011100100111110101
3201021102011
41130213311
544120011
612044221
73140032
oct1344765
9637364
10379381
1123a042
12163671
131038b2
149c389
1577621
hex5c9f5

379381 has 4 divisors (see below), whose sum is σ = 384652. Its totient is φ = 374112.

The previous prime is 379369. The next prime is 379387. The reversal of 379381 is 183973.

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

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 184900 = 441^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 379381 - 29 = 378869 is a prime.

It is a super-2 number, since 2×3793812 = 287859886322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379387) 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, 2526 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (96163).

2379381 is an apocalyptic number.

It is an amenable number.

379381 is a deficient number, since it is larger than the sum of its proper divisors (5271).

379381 is an equidigital number, since it uses as much as digits as its factorization.

379381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270.

The product of its digits is 4536, while the sum is 31.

The square root of 379381 is about 615.9391203682. The cubic root of 379381 is about 72.3922139913.

The spelling of 379381 in words is "three hundred seventy-nine thousand, three hundred eighty-one".

Divisors: 1 73 5197 379381