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10809295140 = 2235733116943
BaseRepresentation
bin10100001000100100…
…01100000100100100
31000220022121002100110
422010102030010210
5134114134421030
64544332413020
7531602331000
oct120422140444
930808532313
1010809295140
114647624476
122118017170
131033576137
1474782b700
15433e6e1b0
hex28448c124

10809295140 has 192 divisors, whose sum is σ = 36436377600. Its totient is φ = 2390855040.

The previous prime is 10809295129. The next prime is 10809295169. The reversal of 10809295140 is 4159290801.

It is a super-2 number, since 2×108092951402 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 629509 + ... + 646451.

It is an arithmetic number, because the mean of its divisors is an integer number (189772800).

Almost surely, 210809295140 is an apocalyptic number.

10809295140 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 10809295140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18218188800).

10809295140 is an abundant number, since it is smaller than the sum of its proper divisors (25627082460).

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

10809295140 is a wasteful number, since it uses less digits than its factorization.

10809295140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 16991 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 10809295140 in words is "ten billion, eight hundred nine million, two hundred ninety-five thousand, one hundred forty".