Base | Representation |
---|---|
bin | 10110110111111001… |
… | …11110001000010111 |
3 | 1011200211020010202102 |
4 | 23123330332020113 |
5 | 200122203044043 |
6 | 5350313432315 |
7 | 613212236342 |
oct | 133374761027 |
9 | 34624203672 |
10 | 12280128023 |
11 | 52318a2a39 |
12 | 246870b69b |
13 | 12091c5557 |
14 | 846cdb459 |
15 | 4bd1566b8 |
hex | 2dbf3e217 |
12280128023 has 2 divisors, whose sum is σ = 12280128024. Its totient is φ = 12280128022.
The previous prime is 12280127989. The next prime is 12280128059. The reversal of 12280128023 is 32082108221.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12280128023 - 214 = 12280111639 is a prime.
It is a super-2 number, since 2×122801280232 (a number of 21 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12280178023) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6140064011 + 6140064012.
It is an arithmetic number, because the mean of its divisors is an integer number (6140064012).
Almost surely, 212280128023 is an apocalyptic number.
12280128023 is a deficient number, since it is larger than the sum of its proper divisors (1).
12280128023 is an equidigital number, since it uses as much as digits as its factorization.
12280128023 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3072, while the sum is 29.
The spelling of 12280128023 in words is "twelve billion, two hundred eighty million, one hundred twenty-eight thousand, twenty-three".
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