Search a number
-
+
252257 = 1491693
BaseRepresentation
bin111101100101100001
3110211000212
4331211201
531033012
65223505
72100305
oct754541
9424025
10252257
11162585
12101b95
138aa85
1467d05
154eb22
hex3d961

252257 has 4 divisors (see below), whose sum is σ = 254100. Its totient is φ = 250416.

The previous prime is 252253. The next prime is 252277. The reversal of 252257 is 752252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 192721 = 244^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 252257 - 22 = 252253 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 252257.

It is not an unprimeable number, because it can be changed into a prime (252253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698 + ... + 995.

It is an arithmetic number, because the mean of its divisors is an integer number (63525).

2252257 is an apocalyptic number.

It is an amenable number.

252257 is a deficient number, since it is larger than the sum of its proper divisors (1843).

252257 is a wasteful number, since it uses less digits than its factorization.

252257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842.

The product of its digits is 1400, while the sum is 23.

The square root of 252257 is about 502.2519288166. The cubic root of 252257 is about 63.1850609619.

The spelling of 252257 in words is "two hundred fifty-two thousand, two hundred fifty-seven".

Divisors: 1 149 1693 252257