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23917661088 = 253249142303
BaseRepresentation
bin10110010001100110…
…101000101110100000
32021201212022001221120
4112101212220232200
5342440410123323
614553154252240
71504462523226
oct262146505640
967655261846
1023917661088
11a163994862
124775b87080
13234222a4a9
14122c724b16
1594eb795e3
hex5919a8ba0

23917661088 has 24 divisors (see below), whose sum is σ = 62783860608. Its totient is φ = 7972553664.

The previous prime is 23917661081. The next prime is 23917661093. The reversal of 23917661088 is 88016671932.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23917661088.

It is not an unprimeable number, because it can be changed into a prime (23917661081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124571056 + ... + 124571247.

It is an arithmetic number, because the mean of its divisors is an integer number (2615994192).

Almost surely, 223917661088 is an apocalyptic number.

It is an amenable number.

23917661088 is an abundant number, since it is smaller than the sum of its proper divisors (38866199520).

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

23917661088 is a wasteful number, since it uses less digits than its factorization.

23917661088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249142316 (or 249142308 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 23917661088 in words is "twenty-three billion, nine hundred seventeen million, six hundred sixty-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 249142303 498284606 747426909 996569212 1494853818 1993138424 2989707636 3986276848 5979415272 7972553696 11958830544 23917661088