Base | Representation |
---|---|
bin | 10111001101000101… |
… | …00001101010100100 |
3 | 1012011012110000112012 |
4 | 23212202201222210 |
5 | 201003140320220 |
6 | 5420100413352 |
7 | 620500041305 |
oct | 134642415244 |
9 | 35135400465 |
10 | 12457745060 |
11 | 5313088282 |
12 | 24b80a7258 |
13 | 1236c438a7 |
14 | 8627347ac |
15 | 4cda3dac5 |
hex | 2e68a1aa4 |
12457745060 has 12 divisors (see below), whose sum is σ = 26161264668. Its totient is φ = 4983098016.
The previous prime is 12457745059. The next prime is 12457745063. The reversal of 12457745060 is 6054775421.
It can be written as a sum of positive squares in 2 ways, for example, as 1626347584 + 10831397476 = 40328^2 + 104074^2 .
It is a junction number, because it is equal to n+sod(n) for n = 12457744999 and 12457745017.
It is not an unprimeable number, because it can be changed into a prime (12457745063) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311443607 + ... + 311443646.
It is an arithmetic number, because the mean of its divisors is an integer number (2180105389).
Almost surely, 212457745060 is an apocalyptic number.
12457745060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12457745060 is an abundant number, since it is smaller than the sum of its proper divisors (13703519608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12457745060 is a wasteful number, since it uses less digits than its factorization.
12457745060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 622887262 (or 622887260 counting only the distinct ones).
The product of its (nonzero) digits is 235200, while the sum is 41.
The spelling of 12457745060 in words is "twelve billion, four hundred fifty-seven million, seven hundred forty-five thousand, sixty".
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