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23910381313 = 7133112766739
BaseRepresentation
bin10110010001001010…
…110111011100000001
32021201100121012222021
4112101022313130001
5342432024200223
614552334241441
71504343613340
oct262112673401
967640535867
1023910381313
11a15a872415
124773656281
13234087bb30
14122b78bb57
1594e1dc65d
hex5912b7701

23910381313 has 32 divisors (see below), whose sum is σ = 30617108480. Its totient is φ = 18163414080.

The previous prime is 23910381307. The next prime is 23910381317. The reversal of 23910381313 is 31318301932.

It is a happy number.

It is not a de Polignac number, because 23910381313 - 29 = 23910380801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23910381317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324898 + ... + 391636.

It is an arithmetic number, because the mean of its divisors is an integer number (956784640).

Almost surely, 223910381313 is an apocalyptic number.

It is an amenable number.

23910381313 is a deficient number, since it is larger than the sum of its proper divisors (6706727167).

23910381313 is a wasteful number, since it uses less digits than its factorization.

23910381313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66917.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 23910381313 in words is "twenty-three billion, nine hundred ten million, three hundred eighty-one thousand, three hundred thirteen".

Divisors: 1 7 13 31 91 127 217 403 889 1651 2821 3937 11557 27559 51181 66739 358267 467173 867607 2068909 6073249 8475853 14482363 26895817 59330971 110186089 188270719 262751443 771302623 1839260101 3415768759 23910381313