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253230263 = 11131770841
BaseRepresentation
bin11110001011111…
…11110010110111
3122122111102121122
433011333302313
51004311332023
641043334155
76163264436
oct1705776267
9578442548
10253230263
1111aa3a710
127098135b
1340603ac0
14258bb11d
15173712c8
hexf17fcb7

253230263 has 8 divisors (see below), whose sum is σ = 297501456. Its totient is φ = 212500800.

The previous prime is 253230251. The next prime is 253230269. The reversal of 253230263 is 362032352.

It is a happy number.

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 253230263 - 26 = 253230199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253230269) 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, 885278 + ... + 885563.

It is an arithmetic number, because the mean of its divisors is an integer number (37187682).

Almost surely, 2253230263 is an apocalyptic number.

253230263 is a deficient number, since it is larger than the sum of its proper divisors (44271193).

253230263 is a wasteful number, since it uses less digits than its factorization.

253230263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770865.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 253230263 is about 15913.2103297858. The cubic root of 253230263 is about 632.6621729997.

The spelling of 253230263 in words is "two hundred fifty-three million, two hundred thirty thousand, two hundred sixty-three".

Divisors: 1 11 13 143 1770841 19479251 23020933 253230263