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396389 = 7173331
BaseRepresentation
bin1100000110001100101
3202010202002
41200301211
5100141024
612255045
73240440
oct1406145
9663662
10396389
112508a4
12171485
1310b566
14a4657
157c6ae
hex60c65

396389 has 8 divisors (see below), whose sum is σ = 479808. Its totient is φ = 319680.

The previous prime is 396379. The next prime is 396413. The reversal of 396389 is 983693.

It is a happy number.

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 396389 - 24 = 396373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396349) 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, 1547 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (59976).

2396389 is an apocalyptic number.

It is an amenable number.

396389 is a deficient number, since it is larger than the sum of its proper divisors (83419).

396389 is a wasteful number, since it uses less digits than its factorization.

396389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

The product of its digits is 34992, while the sum is 38.

The square root of 396389 is about 629.5943138244. The cubic root of 396389 is about 73.4582421264.

The spelling of 396389 in words is "three hundred ninety-six thousand, three hundred eighty-nine".

Divisors: 1 7 17 119 3331 23317 56627 396389