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23040212412 = 2237274288243
BaseRepresentation
bin10101011101010011…
…011011110110111100
32012110201020001122110
4111131103123312330
5334141243244122
614330131414020
71443646400640
oct253523336674
965421201573
1023040212412
119853665668
124570154310
1322324cb5a9
141187d98c20
158ecb0490c
hex55d4dbdbc

23040212412 has 24 divisors (see below), whose sum is σ = 61440566656. Its totient is φ = 6582917808.

The previous prime is 23040212401. The next prime is 23040212423. The reversal of 23040212412 is 21421204032.

It is an interprime number because it is at equal distance from previous prime (23040212401) and next prime (23040212423).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137144038 + ... + 137144205.

Almost surely, 223040212412 is an apocalyptic number.

It is an amenable number.

23040212412 is an abundant number, since it is smaller than the sum of its proper divisors (38400354244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23040212412 is a wasteful number, since it uses less digits than its factorization.

23040212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274288257 (or 274288255 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 23040212412 its reverse (21421204032), we get a palindrome (44461416444).

The spelling of 23040212412 in words is "twenty-three billion, forty million, two hundred twelve thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 274288243 548576486 822864729 1097152972 1645729458 1920017701 3291458916 3840035402 5760053103 7680070804 11520106206 23040212412