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392071 = 1723063
BaseRepresentation
bin1011111101110000111
3201220211011
41133232013
5100021241
612223051
73222031
oct1375607
9656734
10392071
11248629
1216aa87
131095c4
14a2c51
157b281
hex5fb87

392071 has 4 divisors (see below), whose sum is σ = 415152. Its totient is φ = 368992.

The previous prime is 392069. The next prime is 392087. The reversal of 392071 is 170293.

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

It is a cyclic number.

It is not a de Polignac number, because 392071 - 21 = 392069 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392011) 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 3 ways as a sum of consecutive naturals, for example, 11515 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (103788).

2392071 is an apocalyptic number.

392071 is a deficient number, since it is larger than the sum of its proper divisors (23081).

392071 is a wasteful number, since it uses less digits than its factorization.

392071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 392071 is about 626.1557314279. The cubic root of 392071 is about 73.1905324831.

The spelling of 392071 in words is "three hundred ninety-two thousand, seventy-one".

Divisors: 1 17 23063 392071