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392997 = 31111909
BaseRepresentation
bin1011111111100100101
3201222002110
41133330211
5100033442
612231233
73224523
oct1377445
9658073
10392997
112492a0
1216b519
13109b57
14a3313
157b69c
hex5ff25

392997 has 8 divisors (see below), whose sum is σ = 571680. Its totient is φ = 238160.

The previous prime is 392983. The next prime is 393007. The reversal of 392997 is 799293.

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

It is a cyclic number.

It is not a de Polignac number, because 392997 - 24 = 392981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5922 + ... + 5987.

It is an arithmetic number, because the mean of its divisors is an integer number (71460).

2392997 is an apocalyptic number.

It is an amenable number.

392997 is a deficient number, since it is larger than the sum of its proper divisors (178683).

392997 is a wasteful number, since it uses less digits than its factorization.

392997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11923.

The product of its digits is 30618, while the sum is 39.

The square root of 392997 is about 626.8947280046. The cubic root of 392997 is about 73.2481080634.

The spelling of 392997 in words is "three hundred ninety-two thousand, nine hundred ninety-seven".

Divisors: 1 3 11 33 11909 35727 130999 392997