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10640281344 = 283711237823
BaseRepresentation
bin10011110100011010…
…11100111100000000
31000110112120022000020
421322031130330000
5133242403000334
64515454053440
7524450620260
oct117215347400
930415508006
1010640281344
114570185950
12208b4aa280
13100754a984
1472d1d37a0
154241d5e49
hex27a35cf00

10640281344 has 288 divisors, whose sum is σ = 36846157824. Its totient is φ = 2643210240.

The previous prime is 10640281297. The next prime is 10640281381. The reversal of 10640281344 is 44318204601.

It is a super-2 number, since 2×106402813442 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1356217 + ... + 1364039.

It is an arithmetic number, because the mean of its divisors is an integer number (127938048).

Almost surely, 210640281344 is an apocalyptic number.

10640281344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10640281344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18423078912).

10640281344 is an abundant number, since it is smaller than the sum of its proper divisors (26205876480).

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

10640281344 is a wasteful number, since it uses less digits than its factorization.

10640281344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883 (or 7869 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 10640281344 its reverse (44318204601), we get a palindrome (54958485945).

The spelling of 10640281344 in words is "ten billion, six hundred forty million, two hundred eighty-one thousand, three hundred forty-four".