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23988506959872 = 2133472131929103
BaseRepresentation
bin1010111010001010000100…
…11011111010000000000000
310010221021112021222021110000
411131011002123322000000
511121011430240203442
6123004100140240000
75024053364553300
oct535050233720000
9103837467867400
1023988506959872
117709517888534
122835172540000
13105014cc988c0
145cd09b027600
152b8ee1d60d4c
hex15d1426fa000

23988506959872 has 3360 divisors, whose sum is σ = 98711166153600. Its totient is φ = 5730796044288.

The previous prime is 23988506959759. The next prime is 23988506959873. The reversal of 23988506959872 is 27895960588932.

23988506959872 is a `hidden beast` number, since 2 + 39 + 8 + 8 + 506 + 9 + 5 + 9 + 8 + 72 = 666.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 23988506959791 and 23988506959800.

It is not an unprimeable number, because it can be changed into a prime (23988506959873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 232898125773 + ... + 232898125875.

It is an arithmetic number, because the mean of its divisors is an integer number (29378323260).

Almost surely, 223988506959872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23988506959872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49355583076800).

23988506959872 is an abundant number, since it is smaller than the sum of its proper divisors (74722659193728).

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

23988506959872 is a wasteful number, since it uses less digits than its factorization.

23988506959872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 4702924800, while the sum is 81.

The spelling of 23988506959872 in words is "twenty-three trillion, nine hundred eighty-eight billion, five hundred six million, nine hundred fifty-nine thousand, eight hundred seventy-two".