Base | Representation |
---|---|
bin | 10111111111000000… |
… | …11110111110011010 |
3 | 1020020101200002120022 |
4 | 23333200132332122 |
5 | 202332404441104 |
6 | 5525423030442 |
7 | 634044430640 |
oct | 137740367632 |
9 | 36211602508 |
10 | 12876640154 |
11 | 5508589374 |
12 | 25b443b422 |
13 | 12a296c701 |
14 | 8a2217190 |
15 | 5056d5bbe |
hex | 2ff81ef9a |
12876640154 has 16 divisors (see below), whose sum is σ = 22612637376. Its totient is φ = 5383960800.
The previous prime is 12876640151. The next prime is 12876640177. The reversal of 12876640154 is 45104667821.
It is not an unprimeable number, because it can be changed into a prime (12876640151) 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, 11216012 + ... + 11217159.
It is an arithmetic number, because the mean of its divisors is an integer number (1413289836).
Almost surely, 212876640154 is an apocalyptic number.
12876640154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
12876640154 is a deficient number, since it is larger than the sum of its proper divisors (9735997222).
12876640154 is a wasteful number, since it uses less digits than its factorization.
12876640154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22433221.
The product of its (nonzero) digits is 322560, while the sum is 44.
The spelling of 12876640154 in words is "twelve billion, eight hundred seventy-six million, six hundred forty thousand, one hundred fifty-four".
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