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10809137091 = 397160123201
BaseRepresentation
bin10100001000100011…
…00101011111000011
31000220022022001112210
422010101211133003
5134114114341331
64544325153203
7531601102134
oct120421453703
930808261483
1010809137091
114647526755
122117b5b803
13103351c20c
147477c9c8b
15433e3c446
hex2844657c3

10809137091 has 16 divisors (see below), whose sum is σ = 14570484768. Its totient is φ = 7127040000.

The previous prime is 10809137051. The next prime is 10809137093. The reversal of 10809137091 is 19073190801.

It is not a de Polignac number, because 10809137091 - 215 = 10809104323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10809137093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454291 + ... + 477491.

It is an arithmetic number, because the mean of its divisors is an integer number (910655298).

Almost surely, 210809137091 is an apocalyptic number.

10809137091 is a deficient number, since it is larger than the sum of its proper divisors (3761347677).

10809137091 is a wasteful number, since it uses less digits than its factorization.

10809137091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24902.

The product of its (nonzero) digits is 13608, while the sum is 39.

The spelling of 10809137091 in words is "ten billion, eight hundred nine million, one hundred thirty-seven thousand, ninety-one".

Divisors: 1 3 97 291 1601 4803 23201 69603 155297 465891 2250497 6751491 37144801 111434403 3603045697 10809137091