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10643678080 = 27572973499
BaseRepresentation
bin10011110100110100…
…11010001110000000
31000110202221212110021
421322122122032000
5133244240144310
64520054543224
7524521525300
oct117232321600
930422855407
1010643678080
114572095972
122090667b14
131008169a89
1472d839600
154246575da
hex27a69a380

10643678080 has 192 divisors, whose sum is σ = 29913030000. Its totient is φ = 3610607616.

The previous prime is 10643678047. The next prime is 10643678083. The reversal of 10643678080 is 8087634601.

It is a super-2 number, since 2×106436780802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643678083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3040171 + ... + 3043669.

Almost surely, 210643678080 is an apocalyptic number.

10643678080 is a gapful number since it is divisible by the number (10) 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 10643678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14956515000).

10643678080 is an abundant number, since it is smaller than the sum of its proper divisors (19269351920).

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

10643678080 is an equidigital number, since it uses as much as digits as its factorization.

10643678080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629 (or 3610 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 10643678080 in words is "ten billion, six hundred forty-three million, six hundred seventy-eight thousand, eighty".