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23171010064 = 2417611396517
BaseRepresentation
bin10101100101000110…
…011000111000010000
32012210211100021021221
4111211012120320100
5334423234310224
614351123054424
71450125223126
oct254506307020
965724307257
1023171010064
1199104818a4
1245a7b11414
132253636157
14119b4c5916
1590933e6e4
hex565198e10

23171010064 has 40 divisors (see below), whose sum is σ = 48313936728. Its totient is φ = 10725242880.

The previous prime is 23171010019. The next prime is 23171010077. The reversal of 23171010064 is 46001017132.

It can be written as a sum of positive squares in 4 ways, for example, as 2143690000 + 21027320064 = 46300^2 + 145008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681667 + ... + 714850.

Almost surely, 223171010064 is an apocalyptic number.

It is an amenable number.

23171010064 is an abundant number, since it is smaller than the sum of its proper divisors (25142926664).

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

23171010064 is a wasteful number, since it uses less digits than its factorization.

23171010064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396603 (or 1396597 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 23171010064 its reverse (46001017132), we get a palindrome (69172027196).

The spelling of 23171010064 in words is "twenty-three billion, one hundred seventy-one million, ten thousand, sixty-four".

Divisors: 1 2 4 8 16 17 34 61 68 122 136 244 272 488 976 1037 2074 4148 8296 16592 1396517 2793034 5586068 11172136 22344272 23740789 47481578 85187537 94963156 170375074 189926312 340750148 379852624 681500296 1363000592 1448188129 2896376258 5792752516 11585505032 23171010064