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23939948955 = 3513122768969
BaseRepresentation
bin10110010010111011…
…101010000110011011
32021210102020102011010
4112102323222012123
5343012111331310
614555312105003
71505153131356
oct262273520633
967712212133
1023939948955
11a175527a8a
124781535163
132346a32090
14123168729d
15951acd320
hex592eea19b

23939948955 has 16 divisors (see below), whose sum is σ = 41250373920. Its totient is φ = 11785820928.

The previous prime is 23939948953. The next prime is 23939948959. The reversal of 23939948955 is 55984993932.

It is not a de Polignac number, because 23939948955 - 21 = 23939948953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23939948951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61384290 + ... + 61384679.

It is an arithmetic number, because the mean of its divisors is an integer number (2578148370).

Almost surely, 223939948955 is an apocalyptic number.

23939948955 is a deficient number, since it is larger than the sum of its proper divisors (17310424965).

23939948955 is a wasteful number, since it uses less digits than its factorization.

23939948955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122768990.

The product of its digits is 94478400, while the sum is 66.

The spelling of 23939948955 in words is "twenty-three billion, nine hundred thirty-nine million, nine hundred forty-eight thousand, nine hundred fifty-five".

Divisors: 1 3 5 13 15 39 65 195 122768969 368306907 613844845 1595996597 1841534535 4787989791 7979982985 23939948955