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268872837 = 389624279
BaseRepresentation
bin10000000001101…
…010110010000101
3200201221011012020
4100001222302011
51022312412322
642402513353
76443244552
oct2001526205
9621834166
10268872837
11128854162
1276065859
134391ca6c
14279cda29
151891105c
hex1006ac85

268872837 has 4 divisors (see below), whose sum is σ = 358497120. Its totient is φ = 179248556.

The previous prime is 268872823. The next prime is 268872841. The reversal of 268872837 is 738278862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268872837 - 220 = 267824261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268872837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268872847) 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, 44812137 + ... + 44812142.

It is an arithmetic number, because the mean of its divisors is an integer number (89624280).

Almost surely, 2268872837 is an apocalyptic number.

It is an amenable number.

268872837 is a deficient number, since it is larger than the sum of its proper divisors (89624283).

268872837 is an equidigital number, since it uses as much as digits as its factorization.

268872837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89624282.

The product of its digits is 1806336, while the sum is 51.

The square root of 268872837 is about 16397.3423761291. The cubic root of 268872837 is about 645.4297454581.

The spelling of 268872837 in words is "two hundred sixty-eight million, eight hundred seventy-two thousand, eight hundred thirty-seven".

Divisors: 1 3 89624279 268872837