Search a number
-
+
23903115813 = 3219711012193
BaseRepresentation
bin10110010000101111…
…001001101000100101
32021200211221002120200
4112100233021220211
5342423144201223
614551514421113
71504225063203
oct262057115045
967624832520
1023903115813
11a15675a775
124771131799
13233c206b15
14122a81a073
1594d754a43
hex590bc9a25

23903115813 has 72 divisors (see below), whose sum is σ = 37417199040. Its totient is φ = 14660352000.

The previous prime is 23903115791. The next prime is 23903115853. The reversal of 23903115813 is 31851130932.

It is not a de Polignac number, because 23903115813 - 26 = 23903115749 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23903115853) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 123850245 + ... + 123850437.

It is an arithmetic number, because the mean of its divisors is an integer number (519683320).

Almost surely, 223903115813 is an apocalyptic number.

It is an amenable number.

23903115813 is a deficient number, since it is larger than the sum of its proper divisors (13514083227).

23903115813 is a wasteful number, since it uses less digits than its factorization.

23903115813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 23903115813 in words is "twenty-three billion, nine hundred three million, one hundred fifteen thousand, eight hundred thirteen".

Divisors: 1 3 9 19 57 71 101 171 193 213 303 579 639 909 1349 1737 1919 3667 4047 5757 7171 10201 11001 12141 13703 17271 19493 21513 30603 33003 41109 58479 64539 91809 123327 136249 175437 193819 260357 370367 408747 581457 724271 781071 1111101 1226241 1384003 1744371 1968793 2172813 2343213 3333303 4152009 5906379 6518439 12456027 13761149 17719137 26296057 37407067 41283447 78888171 112221201 123850341 139784303 236664513 336663603 419352909 1258058727 2655901757 7967705271 23903115813