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397265 = 51131233
BaseRepresentation
bin1100000111111010001
3202011221112
41200333101
5100203030
612303105
73243131
oct1407721
9664845
10397265
11251520
12171a95
1310ba8b
14a4ac1
157ca95
hex60fd1

397265 has 16 divisors (see below), whose sum is σ = 539136. Its totient is φ = 278400.

The previous prime is 397259. The next prime is 397283. The reversal of 397265 is 562793.

It is not a de Polignac number, because 397265 - 214 = 380881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1589 + ... + 1821.

It is an arithmetic number, because the mean of its divisors is an integer number (33696).

2397265 is an apocalyptic number.

It is an amenable number.

397265 is a deficient number, since it is larger than the sum of its proper divisors (141871).

397265 is a wasteful number, since it uses less digits than its factorization.

397265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its digits is 11340, while the sum is 32.

The square root of 397265 is about 630.2896159703. The cubic root of 397265 is about 73.5123153350.

The spelling of 397265 in words is "three hundred ninety-seven thousand, two hundred sixty-five".

Divisors: 1 5 11 31 55 155 233 341 1165 1705 2563 7223 12815 36115 79453 397265