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252388 = 2263097
BaseRepresentation
bin111101100111100100
3110211012201
4331213210
531034023
65224244
72100553
oct754744
9424181
10252388
11162694
12102084
138ab56
1467d9a
154ebad
hex3d9e4

252388 has 6 divisors (see below), whose sum is σ = 441686. Its totient is φ = 126192.

The previous prime is 252383. The next prime is 252391. The reversal of 252388 is 883252.

It can be written as a sum of positive squares in only one way, i.e., 135424 + 116964 = 368^2 + 342^2 .

It is not an unprimeable number, because it can be changed into a prime (252383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31545 + ... + 31552.

2252388 is an apocalyptic number.

It is an amenable number.

252388 is a deficient number, since it is larger than the sum of its proper divisors (189298).

252388 is a wasteful number, since it uses less digits than its factorization.

252388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63101 (or 63099 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 252388 is about 502.3823245298. The cubic root of 252388 is about 63.1959966486.

The spelling of 252388 in words is "two hundred fifty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 63097 126194 252388