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11820358090 = 2519461134951
BaseRepresentation
bin10110000001000110…
…00101100111001010
31010111210002101222101
423000203011213022
5143202002424330
65232531144014
7565630246252
oct130043054712
933453071871
1011820358090
115016313a92
12235a74500a
131164b87938
14801c18962
15492ad84ca
hex2c08c59ca

11820358090 has 32 divisors (see below), whose sum is σ = 22445216640. Its totient is φ = 4469544000.

The previous prime is 11820358061. The next prime is 11820358093. The reversal of 11820358090 is 9085302811.

It is not an unprimeable number, because it can be changed into a prime (11820358093) 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, 20115 + ... + 155065.

It is an arithmetic number, because the mean of its divisors is an integer number (701413020).

Almost surely, 211820358090 is an apocalyptic number.

11820358090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11820358090 is a deficient number, since it is larger than the sum of its proper divisors (10624858550).

11820358090 is a wasteful number, since it uses less digits than its factorization.

11820358090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135438.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 11820358090 in words is "eleven billion, eight hundred twenty million, three hundred fifty-eight thousand, ninety".

Divisors: 1 2 5 10 19 38 95 190 461 922 2305 4610 8759 17518 43795 87590 134951 269902 674755 1349510 2564069 5128138 12820345 25640690 62212411 124424822 311062055 622124110 1182035809 2364071618 5910179045 11820358090