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23243377808 = 247547379397
BaseRepresentation
bin10101101001011010…
…011100110010010000
32012222212111221011202
4111221122130302100
5340100301042213
614402230130332
71451664310610
oct255132346220
965885457152
1023243377808
11994830a852
1246081b09a8
1322656235c1
1411a6d62a40
15910886b58
hex56969cc90

23243377808 has 40 divisors (see below), whose sum is σ = 51561705792. Its totient is φ = 9943210368.

The previous prime is 23243377777. The next prime is 23243377813. The reversal of 23243377808 is 80877334232.

It is a super-2 number, since 2×232433778082 (a number of 22 digits) contains 22 as substring.

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, 128435 + ... + 250962.

Almost surely, 223243377808 is an apocalyptic number.

23243377808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23243377808 is an abundant number, since it is smaller than the sum of its proper divisors (28318327984).

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

23243377808 is a wasteful number, since it uses less digits than its factorization.

23243377808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379959 (or 379953 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 23243377808 in words is "twenty-three billion, two hundred forty-three million, three hundred seventy-seven thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 547 1094 2188 3829 4376 7658 8752 15316 30632 61264 379397 758794 1517588 2655779 3035176 5311558 6070352 10623116 21246232 42492464 207530159 415060318 830120636 1452711113 1660241272 2905422226 3320482544 5810844452 11621688904 23243377808