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136171688860 = 22528972350219
BaseRepresentation
bin111111011010001110…
…1110001001110011100
3111000111001001112010201
41332310131301032130
54212334423020420
6142320103513244
712560314154224
oct1766435611634
9430431045121
10136171688860
1152828406339
1222483758824
13cac16c452c
14683b00b084
15381eab210a
hex1fb477139c

136171688860 has 24 divisors (see below), whose sum is σ = 286059377520. Its totient is φ = 54449850624.

The previous prime is 136171688857. The next prime is 136171688869. The reversal of 136171688860 is 68886171631.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136171688869) 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, 1117170 + ... + 1233049.

It is an arithmetic number, because the mean of its divisors is an integer number (11919140730).

Almost surely, 2136171688860 is an apocalyptic number.

136171688860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136171688860 is an abundant number, since it is smaller than the sum of its proper divisors (149887688660).

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

136171688860 is a wasteful number, since it uses less digits than its factorization.

136171688860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353125 (or 2353123 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 136171688860 in words is "one hundred thirty-six billion, one hundred seventy-one million, six hundred eighty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 2897 5794 11588 14485 28970 57940 2350219 4700438 9400876 11751095 23502190 47004380 6808584443 13617168886 27234337772 34042922215 68085844430 136171688860