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379409 = 3112239
BaseRepresentation
bin1011100101000010001
3201021110012
41130220101
544120114
612044305
73140102
oct1345021
9637405
10379409
1123a068
12163695
13103904
149c3a9
157763e
hex5ca11

379409 has 4 divisors (see below), whose sum is σ = 391680. Its totient is φ = 367140.

The previous prime is 379399. The next prime is 379417. The reversal of 379409 is 904973.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904973 = 1675419.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-379409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (379439) 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, 6089 + ... + 6150.

It is an arithmetic number, because the mean of its divisors is an integer number (97920).

2379409 is an apocalyptic number.

It is an amenable number.

379409 is a deficient number, since it is larger than the sum of its proper divisors (12271).

379409 is a wasteful number, since it uses less digits than its factorization.

379409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12270.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 379409 is about 615.9618494680. The cubic root of 379409 is about 72.3939949030.

The spelling of 379409 in words is "three hundred seventy-nine thousand, four hundred nine".

Divisors: 1 31 12239 379409