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252247 = 3179103
BaseRepresentation
bin111101100101010111
3110211000111
4331211113
531032442
65223451
72100262
oct754527
9424014
10252247
11162576
12101b87
138aa78
1467cd9
154eb17
hex3d957

252247 has 8 divisors (see below), whose sum is σ = 266240. Its totient is φ = 238680.

The previous prime is 252233. The next prime is 252253. The reversal of 252247 is 742252.

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

It is a cyclic number.

It is not a de Polignac number, because 252247 - 211 = 250199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398 + ... + 2500.

It is an arithmetic number, because the mean of its divisors is an integer number (33280).

2252247 is an apocalyptic number.

252247 is a deficient number, since it is larger than the sum of its proper divisors (13993).

252247 is a wasteful number, since it uses less digits than its factorization.

252247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 1120, while the sum is 22.

The square root of 252247 is about 502.2419735546. The cubic root of 252247 is about 63.1842260211.

Adding to 252247 its reverse (742252), we get a palindrome (994499).

The spelling of 252247 in words is "two hundred fifty-two thousand, two hundred forty-seven".

Divisors: 1 31 79 103 2449 3193 8137 252247