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23456857088 = 21078389443
BaseRepresentation
bin10101110110001000…
…110011110000000000
32020112202012210200202
4111312020303300000
5341014423411323
614435333504332
71460165665310
oct256610636000
966482183622
1023456857088
119a47869a05
1246677a20a8
13229a919cc2
1411c7453440
159244a4d28
hex576233c00

23456857088 has 176 divisors, whose sum is σ = 54968336640. Its totient is φ = 9798057984.

The previous prime is 23456857051. The next prime is 23456857117. The reversal of 23456857088 is 88075865432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52949795 + ... + 52950237.

Almost surely, 223456857088 is an apocalyptic number.

23456857088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23456857088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27484168320).

23456857088 is an abundant number, since it is smaller than the sum of its proper divisors (31511479552).

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

23456857088 is an equidigital number, since it uses as much as digits as its factorization.

23456857088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 23456857088 in words is "twenty-three billion, four hundred fifty-six million, eight hundred fifty-seven thousand, eighty-eight".