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23031241311513 = 3137109481511843
BaseRepresentation
bin1010011110010011000001…
…11101010000010100011001
310000112202122210202211202110
411033021200331100110121
511004320440233432023
6120552223423222533
74564644426032601
oct517114075202431
9100482583684673
1023031241311513
11737a54932a526
1226bb738147a49
13cb0ab5405986
14598a0a3a3c01
1529e16719ea93
hex14f260f50519

23031241311513 has 16 divisors (see below), whose sum is σ = 30932813054016. Its totient is φ = 15241917707520.

The previous prime is 23031241311497. The next prime is 23031241311563. The reversal of 23031241311513 is 31511314213032.

It is not a de Polignac number, because 23031241311513 - 24 = 23031241311497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23031241311563) 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, 44740770 + ... + 45252612.

It is an arithmetic number, because the mean of its divisors is an integer number (1933300815876).

Almost surely, 223031241311513 is an apocalyptic number.

It is an amenable number.

23031241311513 is a deficient number, since it is larger than the sum of its proper divisors (7901571742503).

23031241311513 is a wasteful number, since it uses less digits than its factorization.

23031241311513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621464.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 23031241311513 its reverse (31511314213032), we get a palindrome (54542555524545).

The spelling of 23031241311513 in words is "twenty-three trillion, thirty-one billion, two hundred forty-one million, three hundred eleven thousand, five hundred thirteen".

Divisors: 1 3 137 411 109481 328443 511843 1535529 14998897 44996691 70122491 210367473 56037083483 168111250449 7677080437171 23031241311513