Search a number
-
+
10091009109 = 38398341227
BaseRepresentation
bin10010110010111100…
…01001010001010101
3222001021000101011010
421121132021101111
5131131244242414
64345153202433
7505031106426
oct113136112125
928037011133
1010091009109
114309125555
121b57560419
13c4a80380c
146ba29364d
153e0d88959
hex259789455

10091009109 has 16 divisors (see below), whose sum is σ = 13630966272. Its totient is φ = 6639364848.

The previous prime is 10091009101. The next prime is 10091009111. The reversal of 10091009109 is 90190019001.

It is not a de Polignac number, because 10091009109 - 23 = 10091009101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091009101) 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, 224154 + ... + 265380.

It is an arithmetic number, because the mean of its divisors is an integer number (851935392).

Almost surely, 210091009109 is an apocalyptic number.

It is an amenable number.

10091009109 is a deficient number, since it is larger than the sum of its proper divisors (3539957163).

10091009109 is an equidigital number, since it uses as much as digits as its factorization.

10091009109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 10091009109 in words is "ten billion, ninety-one million, nine thousand, one hundred nine".

Divisors: 1 3 83 249 983 2949 41227 81589 123681 244767 3421841 10265523 40526141 121578423 3363669703 10091009109