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252430 = 2525243
BaseRepresentation
bin111101101000001110
3110211021021
4331220032
531034210
65224354
72100643
oct755016
9424237
10252430
11162722
121020ba
138ab89
1467dca
154ebda
hex3da0e

252430 has 8 divisors (see below), whose sum is σ = 454392. Its totient is φ = 100968.

The previous prime is 252419. The next prime is 252431. The reversal of 252430 is 34252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252431) 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, 12612 + ... + 12631.

It is an arithmetic number, because the mean of its divisors is an integer number (56799).

2252430 is an apocalyptic number.

252430 is a deficient number, since it is larger than the sum of its proper divisors (201962).

252430 is a wasteful number, since it uses less digits than its factorization.

252430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25250.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 252430 is about 502.4241236247. The cubic root of 252430 is about 63.1995019455.

Adding to 252430 its reverse (34252), we get a palindrome (286682).

The spelling of 252430 in words is "two hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 25243 50486 126215 252430