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10791940 = 2251731741
BaseRepresentation
bin101001001010…
…110000000100
3202022021202111
4221022300010
510230320230
61023150404
7160505245
oct51126004
922267674
1010791940
116101165
123745404
13230b183
14160cccc
15e3292a
hexa4ac04

10791940 has 24 divisors (see below), whose sum is σ = 23996952. Its totient is φ = 4062720.

The previous prime is 10791931. The next prime is 10791941. The reversal of 10791940 is 4919701.

It can be written as a sum of positive squares in 4 ways, for example, as 3218436 + 7573504 = 1794^2 + 2752^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (10791941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15531 + ... + 16210.

It is an arithmetic number, because the mean of its divisors is an integer number (999873).

Almost surely, 210791940 is an apocalyptic number.

10791940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10791940 is an abundant number, since it is smaller than the sum of its proper divisors (13205012).

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

10791940 is a wasteful number, since it uses less digits than its factorization.

10791940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31767 (or 31765 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 10791940 is about 3285.1088262035. The cubic root of 10791940 is about 220.9868886525.

The spelling of 10791940 in words is "ten million, seven hundred ninety-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 31741 63482 126964 158705 317410 539597 634820 1079194 2158388 2697985 5395970 10791940