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11820083140 = 22517312792671
BaseRepresentation
bin10110000001000100…
…00010011111000100
31010111202120102211001
423000202002133010
5143201420130030
65232521223044
7565625022535
oct130042023704
933452512731
1011820083140
115016146458
12235a631a84
131164abc748
14801b8668c
15492a81cca
hex2c08827c4

11820083140 has 48 divisors (see below), whose sum is σ = 24994529280. Its totient is φ = 4695269760.

The previous prime is 11820083101. The next prime is 11820083201. The reversal of 11820083140 is 4138002811.

It is a junction number, because it is equal to n+sod(n) for n = 11820083099 and 11820083108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4424005 + ... + 4426675.

It is an arithmetic number, because the mean of its divisors is an integer number (520719360).

Almost surely, 211820083140 is an apocalyptic number.

11820083140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11820083140 is an abundant number, since it is smaller than the sum of its proper divisors (13174446140).

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

11820083140 is a wasteful number, since it uses less digits than its factorization.

11820083140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132 (or 4130 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 11820083140 its reverse (4138002811), we get a palindrome (15958085951).

The spelling of 11820083140 in words is "eleven billion, eight hundred twenty million, eighty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1279 1730 2558 2671 3460 5116 5342 6395 10684 12790 13355 25580 26710 53420 221267 442534 462083 885068 924166 1106335 1848332 2212670 2310415 3416209 4425340 4620830 6832418 9241660 13664836 17081045 34162090 68324180 591004157 1182008314 2364016628 2955020785 5910041570 11820083140