Base | Representation |
---|---|
bin | 111011100110010101… |
… | …1110011100101100000 |
3 | 110020100201011111000120 |
4 | 1313030223303211200 |
5 | 4044104422242021 |
6 | 134444044520240 |
7 | 12150443535120 |
oct | 1671453634540 |
9 | 406321144016 |
10 | 127988087136 |
11 | 4a308a36228 |
12 | 2097ab50080 |
13 | c0b9119050 |
14 | 62a21ccc80 |
15 | 34e13eb2c6 |
hex | 1dccaf3960 |
127988087136 has 192 divisors, whose sum is σ = 437824009728. Its totient is φ = 31769468928.
The previous prime is 127988087099. The next prime is 127988087231. The reversal of 127988087136 is 631780889721.
It is a self number, because there is not a number n which added to its sum of digits gives 127988087136.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282390 + ... + 579413.
It is an arithmetic number, because the mean of its divisors is an integer number (2280333384).
Almost surely, 2127988087136 is an apocalyptic number.
127988087136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
127988087136 is an abundant number, since it is smaller than the sum of its proper divisors (309835922592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127988087136 is a wasteful number, since it uses less digits than its factorization.
127988087136 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 861853 (or 861845 counting only the distinct ones).
The product of its (nonzero) digits is 8128512, while the sum is 60.
The spelling of 127988087136 in words is "one hundred twenty-seven billion, nine hundred eighty-eight million, eighty-seven thousand, one hundred thirty-six".
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