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253832945 = 5232207243
BaseRepresentation
bin11110010000100…
…10111011110001
3122200122001100012
433020102323301
51004440123240
641104304305
76201354512
oct1710227361
9580561305
10253832945
111203114a3
1271012095
1340785212
14259d6a09
151743eb65
hexf212ef1

253832945 has 8 divisors (see below), whose sum is σ = 317843136. Its totient is φ = 194237296.

The previous prime is 253832941. The next prime is 253832983. The reversal of 253832945 is 549238352.

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 253832945 - 22 = 253832941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253832941) 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, 1103507 + ... + 1103736.

It is an arithmetic number, because the mean of its divisors is an integer number (39730392).

Almost surely, 2253832945 is an apocalyptic number.

It is an amenable number.

253832945 is a deficient number, since it is larger than the sum of its proper divisors (64010191).

253832945 is a wasteful number, since it uses less digits than its factorization.

253832945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207271.

The product of its digits is 259200, while the sum is 41.

The square root of 253832945 is about 15932.1356070051. The cubic root of 253832945 is about 633.1636823220.

The spelling of 253832945 in words is "two hundred fifty-three million, eight hundred thirty-two thousand, nine hundred forty-five".

Divisors: 1 5 23 115 2207243 11036215 50766589 253832945