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11923841380 = 22511533310163
BaseRepresentation
bin10110001101011011…
…10110000101100100
31010202222210220100211
423012231312011210
5143410000411010
65251105145204
7601324656643
oct130655660544
933688726324
1011923841380
115069774570
12238932b204
13118044aa59
1481187535a
1549bc2a08a
hex2c6b76164

11923841380 has 48 divisors (see below), whose sum is σ = 27324247104. Its totient is φ = 4334702720.

The previous prime is 11923841357. The next prime is 11923841393. The reversal of 11923841380 is 8314832911.

11923841380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168179 + ... + 1178341.

It is an arithmetic number, because the mean of its divisors is an integer number (569255148).

Almost surely, 211923841380 is an apocalyptic number.

11923841380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11923841380 is an abundant number, since it is smaller than the sum of its proper divisors (15400405724).

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

11923841380 is a wasteful number, since it uses less digits than its factorization.

11923841380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516 (or 15514 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 11923841380 in words is "eleven billion, nine hundred twenty-three million, eight hundred forty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5333 10163 10666 20326 21332 26665 40652 50815 53330 58663 101630 106660 111793 117326 203260 223586 234652 293315 447172 558965 586630 1117930 1173260 2235860 54199279 108398558 216797116 270996395 541992790 596192069 1083985580 1192384138 2384768276 2980960345 5961920690 11923841380