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268123203 = 344770429
BaseRepresentation
bin11111111101100…
…11110001000011
3200200112001220000
433332303301003
51022114420303
642334451043
76434003205
oct1776636103
9620461800
10268123203
11128391a27
1275963a83
13437197aa
1427876775
1518813da3
hexffb3c43

268123203 has 20 divisors (see below), whose sum is σ = 409057440. Its totient is φ = 174943152.

The previous prime is 268123169. The next prime is 268123279. The reversal of 268123203 is 302321862.

It is not a de Polignac number, because 268123203 - 26 = 268123139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (268122203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31408 + ... + 39021.

It is an arithmetic number, because the mean of its divisors is an integer number (20452872).

Almost surely, 2268123203 is an apocalyptic number.

268123203 is a deficient number, since it is larger than the sum of its proper divisors (140934237).

268123203 is an equidigital number, since it uses as much as digits as its factorization.

268123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70488 (or 70479 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 268123203 is about 16374.4680218931. The cubic root of 268123203 is about 644.8293545324.

The spelling of 268123203 in words is "two hundred sixty-eight million, one hundred twenty-three thousand, two hundred three".

Divisors: 1 3 9 27 47 81 141 423 1269 3807 70429 211287 633861 1901583 3310163 5704749 9930489 29791467 89374401 268123203