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252943 = 1714879
BaseRepresentation
bin111101110000001111
3110211222021
4331300033
531043233
65231011
72102305
oct756017
9424867
10252943
11163049
12102467
138b192
1468275
154ee2d
hex3dc0f

252943 has 4 divisors (see below), whose sum is σ = 267840. Its totient is φ = 238048.

The previous prime is 252937. The next prime is 252949. The reversal of 252943 is 349252.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (252937) and next prime (252949).

It is a cyclic number.

It is not a de Polignac number, because 252943 - 25 = 252911 is a prime.

It is a super-2 number, since 2×2529432 = 127960322498, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252949) 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 in 3 ways as a sum of consecutive naturals, for example, 7423 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2252943 is an apocalyptic number.

252943 is a deficient number, since it is larger than the sum of its proper divisors (14897).

252943 is a wasteful number, since it uses less digits than its factorization.

252943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14896.

The product of its digits is 2160, while the sum is 25.

The square root of 252943 is about 502.9343893591. The cubic root of 252943 is about 63.2422853001.

The spelling of 252943 in words is "two hundred fifty-two thousand, nine hundred forty-three".

Divisors: 1 17 14879 252943