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23183012690 = 2543107503869
BaseRepresentation
bin10101100101110100…
…001011001101010010
32012211122221001210122
4111211310023031102
5334434322401230
614352232230242
71450332233165
oct254564131522
965748831718
1023183012690
11991722a622
1245abb3b382
132255c793b6
14119cd2badc
1590a410be5
hex565d0b352

23183012690 has 32 divisors (see below), whose sum is σ = 43099024320. Its totient is φ = 8972881344.

The previous prime is 23183012663. The next prime is 23183012711. The reversal of 23183012690 is 9621038132.

It is a super-2 number, since 2×231830126902 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23183012690.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 205925 + ... + 297944.

It is an arithmetic number, because the mean of its divisors is an integer number (1346844510).

Almost surely, 223183012690 is an apocalyptic number.

23183012690 is a deficient number, since it is larger than the sum of its proper divisors (19916011630).

23183012690 is a wasteful number, since it uses less digits than its factorization.

23183012690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504026.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 23183012690 in words is "twenty-three billion, one hundred eighty-three million, twelve thousand, six hundred ninety".

Divisors: 1 2 5 10 43 86 107 214 215 430 535 1070 4601 9202 23005 46010 503869 1007738 2519345 5038690 21666367 43332734 53913983 107827966 108331835 216663670 269569915 539139830 2318301269 4636602538 11591506345 23183012690