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10538091 = 321170899
BaseRepresentation
bin101000001100…
…110001101011
3201211101112200
4220030301223
510144204331
61013511243
7155400204
oct50146153
921741480
1010538091
115a48473
123642523
13224c775
1415845ab
15dd25e6
hexa0cc6b

10538091 has 6 divisors (see below), whose sum is σ = 15221700. Its totient is φ = 7025388.

The previous prime is 10538089. The next prime is 10538111. The reversal of 10538091 is 19083501.

It is not a de Polignac number, because 10538091 - 21 = 10538089 is a prime.

It is a super-2 number, since 2×105380912 = 222102723848562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10538291) 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 5 ways as a sum of consecutive naturals, for example, 585441 + ... + 585458.

It is an arithmetic number, because the mean of its divisors is an integer number (2536950).

Almost surely, 210538091 is an apocalyptic number.

10538091 is a deficient number, since it is larger than the sum of its proper divisors (4683609).

10538091 is a wasteful number, since it uses less digits than its factorization.

10538091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170905 (or 1170902 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 10538091 is about 3246.2425972191. The cubic root of 10538091 is about 219.2404315082.

The spelling of 10538091 in words is "ten million, five hundred thirty-eight thousand, ninety-one".

Divisors: 1 3 9 1170899 3512697 10538091