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23078700687 = 3723101473089
BaseRepresentation
bin10101011111100110…
…010000011010001111
32012120101122110122010
4111133212100122033
5334231121410222
614334024352303
71444624501440
oct253746203217
965511573563
1023078700687
119873363459
124581015693
13223a486013
14118d1372c7
159011a880c
hex55f99068f

23078700687 has 32 divisors (see below), whose sum is σ = 37059978240. Its totient is φ = 12489523200.

The previous prime is 23078700677. The next prime is 23078700709. The reversal of 23078700687 is 78600787032.

It is not a de Polignac number, because 23078700687 - 210 = 23078699663 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23078700677) 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 31 ways as a sum of consecutive naturals, for example, 187762 + ... + 285327.

It is an arithmetic number, because the mean of its divisors is an integer number (1158124320).

Almost surely, 223078700687 is an apocalyptic number.

23078700687 is a deficient number, since it is larger than the sum of its proper divisors (13981277553).

23078700687 is a wasteful number, since it uses less digits than its factorization.

23078700687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473223.

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 23078700687 in words is "twenty-three billion, seventy-eight million, seven hundred thousand, six hundred eighty-seven".

Divisors: 1 3 7 21 23 69 101 161 303 483 707 2121 2323 6969 16261 48783 473089 1419267 3311623 9934869 10881047 32643141 47781989 76167329 143345967 228501987 334473923 1003421769 1098985747 3296957241 7692900229 23078700687