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13607842618820 = 2251381492680761
BaseRepresentation
bin1100011000000101001010…
…1000000001110111000100
31210011220012221121220021102
43012001102220001313010
53240422330202300240
644535205005235232
72603064011535332
oct306012250016704
953156187556242
1013607842618820
11437706544794a
12163935ab62b18
137792a2374278
143508a1ac6b52
15188e87cb3815
hexc6052a01dc4

13607842618820 has 24 divisors (see below), whose sum is σ = 28597162149528. Its totient is φ = 5439195590400.

The previous prime is 13607842618757. The next prime is 13607842618829. The reversal of 13607842618820 is 2881624870631.

It can be written as a sum of positive squares in 4 ways, for example, as 188793726016 + 13419048892804 = 434504^2 + 3663202^2 .

It is not an unprimeable number, because it can be changed into a prime (13607842618829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246312761 + ... + 246368000.

It is an arithmetic number, because the mean of its divisors is an integer number (1191548422897).

Almost surely, 213607842618820 is an apocalyptic number.

13607842618820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13607842618820 is an abundant number, since it is smaller than the sum of its proper divisors (14989319530708).

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

13607842618820 is a wasteful number, since it uses less digits than its factorization.

13607842618820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492682151 (or 492682149 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 13607842618820 in words is "thirteen trillion, six hundred seven billion, eight hundred forty-two million, six hundred eighteen thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1381 2762 5524 6905 13810 27620 492680761 985361522 1970723044 2463403805 4926807610 9853615220 680392130941 1360784261882 2721568523764 3401960654705 6803921309410 13607842618820