Search a number
-
+
253952631 = 339405653
BaseRepresentation
bin11110010001100…
…00001001110111
3122200212010112000
433020300021313
51010002441011
641111030343
76202363452
oct1710601167
9580763460
10253952631
11120393409
127106b3b3
13407c783a
1425a28499
1517465356
hexf230277

253952631 has 8 divisors (see below), whose sum is σ = 376226160. Its totient is φ = 169301736.

The previous prime is 253952561. The next prime is 253952641. The reversal of 253952631 is 136259352.

253952631 is a `hidden beast` number, since 2 + 5 + 395 + 263 + 1 = 666.

253952631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253952631 - 211 = 253950583 is a prime.

It is a super-2 number, since 2×2539526312 = 128983877583644322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253952641) 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, 4702800 + ... + 4702853.

It is an arithmetic number, because the mean of its divisors is an integer number (47028270).

Almost surely, 2253952631 is an apocalyptic number.

253952631 is a deficient number, since it is larger than the sum of its proper divisors (122273529).

253952631 is an equidigital number, since it uses as much as digits as its factorization.

253952631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405662 (or 9405656 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 253952631 is about 15935.8912835147. The cubic root of 253952631 is about 633.2631820422.

The spelling of 253952631 in words is "two hundred fifty-three million, nine hundred fifty-two thousand, six hundred thirty-one".

Divisors: 1 3 9 27 9405653 28216959 84650877 253952631