Search a number
-
+
23015247541 = 11134111334739
BaseRepresentation
bin10101011011110100…
…001100111010110101
32012101222020201021121
4111123310030322311
5334113400410131
614323440343541
71443224243026
oct253364147265
965358221247
1023015247541
119840564140
124563914bb1
13222a29a390
14118493ac4d
158ea822911
hex55bd0ceb5

23015247541 has 32 divisors (see below), whose sum is σ = 27944300160. Its totient is φ = 18675148800.

The previous prime is 23015247533. The next prime is 23015247553. The reversal of 23015247541 is 14574251032.

It is not a de Polignac number, because 23015247541 - 23 = 23015247533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23015247497 and 23015247506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015248541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645150 + ... + 679888.

It is an arithmetic number, because the mean of its divisors is an integer number (873259380).

Almost surely, 223015247541 is an apocalyptic number.

It is an amenable number.

23015247541 is a deficient number, since it is larger than the sum of its proper divisors (4929052619).

23015247541 is a wasteful number, since it uses less digits than its factorization.

23015247541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34917.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 23015247541 its reverse (14574251032), we get a palindrome (37589498573).

The spelling of 23015247541 in words is "twenty-three billion, fifteen million, two hundred forty-seven thousand, five hundred forty-one".

Divisors: 1 11 13 41 113 143 451 533 1243 1469 4633 5863 16159 34739 50963 60229 382129 451607 662519 1424299 3925507 4967677 15667289 18515887 43180577 51031591 160945787 203674757 561347501 1770403657 2092295231 23015247541