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188858682140 = 22510986632423
BaseRepresentation
bin1010111111100011011…
…0101100101100011100
3200001110212221002121012
42233320312230230130
511043240310312030
6222432132554352
716434044211512
oct2577066545434
9601425832535
10188858682140
1173104891197
12307284829b8
1314a6a0456bb
1491d85464b2
154da52bd095
hex2bf8dacb1c

188858682140 has 24 divisors (see below), whose sum is σ = 400241798880. Its totient is φ = 74850412608.

The previous prime is 188858682107. The next prime is 188858682193. The reversal of 188858682140 is 41286858881.

188858682140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 188858682140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43314032 + ... + 43318391.

It is an arithmetic number, because the mean of its divisors is an integer number (16676741620).

Almost surely, 2188858682140 is an apocalyptic number.

188858682140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188858682140 is an abundant number, since it is smaller than the sum of its proper divisors (211383116740).

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

188858682140 is a wasteful number, since it uses less digits than its factorization.

188858682140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86632541 (or 86632539 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 59.

The spelling of 188858682140 in words is "one hundred eighty-eight billion, eight hundred fifty-eight million, six hundred eighty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 86632423 173264846 346529692 433162115 866324230 1732648460 9442934107 18885868214 37771736428 47214670535 94429341070 188858682140