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10105000064 = 27312699467
BaseRepresentation
bin10010110100100111…
…00001000010000000
3222002020100012010122
421122103201002000
5131143340000224
64350413115412
7505261040405
oct113223410200
928066305118
1010105000064
114316011125
121b60188b68
13c50691aa3
146bc0962ac
153e21ee15e
hex25a4e1080

10105000064 has 64 divisors (see below), whose sum is σ = 20859897600. Its totient is φ = 4870824960.

The previous prime is 10105000063. The next prime is 10105000093. The reversal of 10105000064 is 46000050101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×101050000642 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10105000063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062659 + ... + 1072125.

It is an arithmetic number, because the mean of its divisors is an integer number (325935900).

Almost surely, 210105000064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10105000064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10429948800).

10105000064 is an abundant number, since it is smaller than the sum of its proper divisors (10754897536).

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

10105000064 is an equidigital number, since it uses as much as digits as its factorization.

10105000064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781 (or 9769 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10105000064 its reverse (46000050101), we get a palindrome (56105050165).

The spelling of 10105000064 in words is "ten billion, one hundred five million, sixty-four", and thus it is an aban number.

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 269 496 538 992 1076 1984 2152 3968 4304 8339 8608 9467 16678 17216 18934 33356 34432 37868 66712 75736 133424 151472 266848 293477 302944 533696 586954 605888 1067392 1173908 1211776 2347816 2546623 4695632 5093246 9391264 10186492 18782528 20372984 37565056 40745968 78945313 81491936 157890626 162983872 315781252 325967744 631562504 1263125008 2526250016 5052500032 10105000064