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23254645231 = 107389701797
BaseRepresentation
bin10101101010000101…
…011011100111101111
32020000122201101011201
4111222011123213233
5340111142121411
614403311430331
71452162136336
oct255205334757
966018641151
1023254645231
119953706174
12460bb253a7
132267a6a00c
1411a8656d1d
159118603c1
hex56a15b9ef

23254645231 has 16 divisors (see below), whose sum is σ = 23595455520. Its totient is φ = 22916521600.

The previous prime is 23254645187. The next prime is 23254645247. The reversal of 23254645231 is 13254645232.

It is a cyclic number.

It is not a de Polignac number, because 23254645231 - 219 = 23254120943 is a prime.

It is a super-2 number, since 2×232546452312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23254645031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29177325 + ... + 29178121.

It is an arithmetic number, because the mean of its divisors is an integer number (1474715970).

Almost surely, 223254645231 is an apocalyptic number.

23254645231 is a deficient number, since it is larger than the sum of its proper divisors (340810289).

23254645231 is a wasteful number, since it uses less digits than its factorization.

23254645231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994.

The product of its digits is 172800, while the sum is 37.

Subtracting from 23254645231 its reverse (13254645232), we obtain a palindrome (9999999999).

The spelling of 23254645231 in words is "twenty-three billion, two hundred fifty-four million, six hundred forty-five thousand, two hundred thirty-one".

Divisors: 1 107 389 701 797 41623 75007 85279 272689 310033 558697 29177723 33173531 59780579 217333133 23254645231