Base | Representation |
---|---|
bin | 10111111101111100… |
… | …00100010010110010 |
3 | 1020012202200201110100 |
4 | 23332332010102302 |
5 | 202323102233340 |
6 | 5524501413230 |
7 | 633604643124 |
oct | 137676042262 |
9 | 36182621410 |
10 | 12867617970 |
11 | 5503486919 |
12 | 25b140a216 |
13 | 12a0b30c3c |
14 | 8a0d49214 |
15 | 504a02830 |
hex | 2fef844b2 |
12867617970 has 48 divisors (see below), whose sum is σ = 33467878080. Its totient is φ = 3430126752.
The previous prime is 12867617941. The next prime is 12867617999. The reversal of 12867617970 is 7971676821.
12867617970 is a `hidden beast` number, since 12 + 8 + 6 + 7 + 617 + 9 + 7 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (12867617941) and next prime (12867617999).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240187 + ... + 288833.
It is an arithmetic number, because the mean of its divisors is an integer number (697247460).
Almost surely, 212867617970 is an apocalyptic number.
12867617970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12867617970 is an abundant number, since it is smaller than the sum of its proper divisors (20600260110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12867617970 is a wasteful number, since it uses less digits than its factorization.
12867617970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51599 (or 51596 counting only the distinct ones).
The product of its (nonzero) digits is 1778112, while the sum is 54.
The spelling of 12867617970 in words is "twelve billion, eight hundred sixty-seven million, six hundred seventeen thousand, nine hundred seventy".
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