Base | Representation |
---|---|
bin | 10111010011101111… |
… | …00111011101010101 |
3 | 1012022002120000120221 |
4 | 23221313213131111 |
5 | 201111440333321 |
6 | 5425413554341 |
7 | 622045614520 |
oct | 135167473525 |
9 | 35262500527 |
10 | 12513605461 |
11 | 5341670aa5 |
12 | 25129459b1 |
13 | 12456a1596 |
14 | 869d15bb7 |
15 | 4d38c4e41 |
hex | 2e9de7755 |
12513605461 has 8 divisors (see below), whose sum is σ = 14687784320. Its totient is φ = 10436056848.
The previous prime is 12513605459. The next prime is 12513605491. The reversal of 12513605461 is 16450631521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12513605461 - 21 = 12513605459 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12513605411) 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, 24157281 + ... + 24157798.
It is an arithmetic number, because the mean of its divisors is an integer number (1835973040).
Almost surely, 212513605461 is an apocalyptic number.
It is an amenable number.
12513605461 is a deficient number, since it is larger than the sum of its proper divisors (2174178859).
12513605461 is an equidigital number, since it uses as much as digits as its factorization.
12513605461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48315123.
The product of its (nonzero) digits is 21600, while the sum is 34.
The spelling of 12513605461 in words is "twelve billion, five hundred thirteen million, six hundred five thousand, four hundred sixty-one".
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