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23663836631 = 1391163146383
BaseRepresentation
bin10110000010011110…
…010111110111010111
32021002011200110020202
4112002132113313113
5341430420233011
614512050051115
71465261202231
oct260236276727
967064613222
1023663836631
11a043689786
124704b79a9b
1323017790c6
141206b31251
1593773c23b
hex582797dd7

23663836631 has 8 divisors (see below), whose sum is σ = 23854736640. Its totient is φ = 23473231992.

The previous prime is 23663836621. The next prime is 23663836633. The reversal of 23663836631 is 13663836632.

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 23663836631 - 214 = 23663820247 is a prime.

It is a super-2 number, since 2×236638366312 (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 (23663836633) 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, 88466 + ... + 234848.

It is an arithmetic number, because the mean of its divisors is an integer number (2981842080).

Almost surely, 223663836631 is an apocalyptic number.

23663836631 is a deficient number, since it is larger than the sum of its proper divisors (190900009).

23663836631 is a wasteful number, since it uses less digits than its factorization.

23663836631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147685.

The product of its digits is 1679616, while the sum is 47.

Subtracting from 23663836631 its reverse (13663836632), we obtain a palindrome (9999999999).

The spelling of 23663836631 in words is "twenty-three billion, six hundred sixty-three million, eight hundred thirty-six thousand, six hundred thirty-one".

Divisors: 1 139 1163 146383 161657 20347237 170243429 23663836631