Base | Representation |
---|---|
bin | 10111110000100010… |
… | …01111001010010001 |
3 | 1012220221011102201000 |
4 | 23320101033022101 |
5 | 202110312441310 |
6 | 5505404132213 |
7 | 631041301620 |
oct | 137021171221 |
9 | 35827142630 |
10 | 12755202705 |
11 | 5455a85643 |
12 | 257b837069 |
13 | 128376142b |
14 | 8900456b7 |
15 | 4e9be94c0 |
hex | 2f844f291 |
12755202705 has 64 divisors (see below), whose sum is σ = 26547494400. Its totient is φ = 5688714240.
The previous prime is 12755202689. The next prime is 12755202739. The reversal of 12755202705 is 50720255721.
12755202705 is a `hidden beast` number, since 127 + 5 + 520 + 2 + 7 + 0 + 5 = 666.
It is not a de Polignac number, because 12755202705 - 24 = 12755202689 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12755202705.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125860 + ... + 203349.
It is an arithmetic number, because the mean of its divisors is an integer number (414804600).
Almost surely, 212755202705 is an apocalyptic number.
12755202705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12755202705 is an abundant number, since it is smaller than the sum of its proper divisors (13792291695).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12755202705 is a wasteful number, since it uses less digits than its factorization.
12755202705 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 329271 (or 329265 counting only the distinct ones).
The product of its (nonzero) digits is 49000, while the sum is 36.
The spelling of 12755202705 in words is "twelve billion, seven hundred fifty-five million, two hundred two thousand, seven hundred five".
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