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379129 = 2711399
BaseRepresentation
bin1011100100011111001
3201021001211
41130203321
544113004
612043121
73136222
oct1344371
9637054
10379129
11239933
121634a1
1310374a
149c249
1577504
hex5c8f9

379129 has 4 divisors (see below), whose sum is σ = 380800. Its totient is φ = 377460.

The previous prime is 379123. The next prime is 379133. The reversal of 379129 is 921973.

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: 921973 = 1370921.

It is a cyclic number.

It is not a de Polignac number, because 379129 - 25 = 379097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 379129.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429 + ... + 970.

It is an arithmetic number, because the mean of its divisors is an integer number (95200).

2379129 is an apocalyptic number.

It is an amenable number.

379129 is a deficient number, since it is larger than the sum of its proper divisors (1671).

379129 is a wasteful number, since it uses less digits than its factorization.

379129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670.

The product of its digits is 3402, while the sum is 31.

The square root of 379129 is about 615.7345207149. The cubic root of 379129 is about 72.3761818419.

The spelling of 379129 in words is "three hundred seventy-nine thousand, one hundred twenty-nine".

Divisors: 1 271 1399 379129