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268039293 = 389346431
BaseRepresentation
bin11111111100111…
…11010001111101
3200200100210210020
433332133101331
51022104224133
642333002353
76433203444
oct1776372175
9620323706
10268039293
11128334985
12759233b9
13436ba542
1427853d5b
15187e90b3
hexff9f47d

268039293 has 4 divisors (see below), whose sum is σ = 357385728. Its totient is φ = 178692860.

The previous prime is 268039273. The next prime is 268039297. The reversal of 268039293 is 392930862.

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 268039293 - 29 = 268038781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268039297) 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, 44673213 + ... + 44673218.

It is an arithmetic number, because the mean of its divisors is an integer number (89346432).

Almost surely, 2268039293 is an apocalyptic number.

It is an amenable number.

268039293 is a deficient number, since it is larger than the sum of its proper divisors (89346435).

268039293 is an equidigital number, since it uses as much as digits as its factorization.

268039293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89346434.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 268039293 is about 16371.9056007540. The cubic root of 268039293 is about 644.7620803889.

The spelling of 268039293 in words is "two hundred sixty-eight million, thirty-nine thousand, two hundred ninety-three".

Divisors: 1 3 89346431 268039293