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23242311631 = 711311970573
BaseRepresentation
bin10101101001010110…
…011000011111001111
32012222210111202122201
4111221112120133033
5340100012433011
614402151222331
71451652250330
oct255126303717
965883452581
1023242311631
119947751810
1246079779a7
13226533c226
1411a6b66287
15910725cc1
hex5695987cf

23242311631 has 16 divisors (see below), whose sum is σ = 29070632448. Its totient is φ = 18052639200.

The previous prime is 23242311629. The next prime is 23242311661. The reversal of 23242311631 is 13611324232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23242311631 - 21 = 23242311629 is a prime.

It is a super-2 number, since 2×232423116312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23242311631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23242311661) 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, 461340 + ... + 509233.

It is an arithmetic number, because the mean of its divisors is an integer number (1816914528).

Almost surely, 223242311631 is an apocalyptic number.

23242311631 is a deficient number, since it is larger than the sum of its proper divisors (5828320817).

23242311631 is a wasteful number, since it uses less digits than its factorization.

23242311631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970902.

The product of its digits is 5184, while the sum is 28.

Adding to 23242311631 its reverse (13611324232), we get a palindrome (36853635863).

The spelling of 23242311631 in words is "twenty-three billion, two hundred forty-two million, three hundred eleven thousand, six hundred thirty-one".

Divisors: 1 7 11 77 311 2177 3421 23947 970573 6794011 10676303 74734121 301848203 2112937421 3320330233 23242311631