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252251 = 1931307
BaseRepresentation
bin111101100101011011
3110211000122
4331211123
531033001
65223455
72100266
oct754533
9424018
10252251
1116257a
12101b8b
138aa7c
1467cdd
154eb1b
hex3d95b

252251 has 4 divisors (see below), whose sum is σ = 253752. Its totient is φ = 250752.

The previous prime is 252233. The next prime is 252253. The reversal of 252251 is 152252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252251 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 252251.

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, 461 + ... + 846.

It is an arithmetic number, because the mean of its divisors is an integer number (63438).

2252251 is an apocalyptic number.

252251 is a deficient number, since it is larger than the sum of its proper divisors (1501).

252251 is a wasteful number, since it uses less digits than its factorization.

252251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500.

The product of its digits is 200, while the sum is 17.

The square root of 252251 is about 502.2459556831. The cubic root of 252251 is about 63.1845600001.

Subtracting from 252251 its reverse (152252), we obtain a palindrome (99999).

The spelling of 252251 in words is "two hundred fifty-two thousand, two hundred fifty-one".

Divisors: 1 193 1307 252251