Base | Representation |
---|---|
bin | 10111010111000010… |
… | …10101110110100100 |
3 | 1012101000201002122000 |
4 | 23223201111312210 |
5 | 201141034224422 |
6 | 5432244005300 |
7 | 622533315642 |
oct | 135341256644 |
9 | 35330632560 |
10 | 12541320612 |
11 | 5356280887 |
12 | 2520090830 |
13 | 124b356592 |
14 | 86d88c192 |
15 | 4d604bcac |
hex | 2eb855da4 |
12541320612 has 48 divisors (see below), whose sum is σ = 32770590720. Its totient is φ = 4147518816.
The previous prime is 12541320577. The next prime is 12541320619. The reversal of 12541320612 is 21602314521.
12541320612 is a `hidden beast` number, since 1 + 2 + 5 + 41 + 3 + 2 + 0 + 612 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (12541320619) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443463 + ... + 470894.
It is an arithmetic number, because the mean of its divisors is an integer number (682720640).
Almost surely, 212541320612 is an apocalyptic number.
12541320612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12541320612 is an abundant number, since it is smaller than the sum of its proper divisors (20229270108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12541320612 is a wasteful number, since it uses less digits than its factorization.
12541320612 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 914497 (or 914489 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The spelling of 12541320612 in words is "twelve billion, five hundred forty-one million, three hundred twenty thousand, six hundred twelve".
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