Base | Representation |
---|---|
bin | 11000101010111011… |
… | …10000101011110111 |
3 | 1021012001211222121001 |
4 | 30111131300223313 |
5 | 204111211300030 |
6 | 10030142504131 |
7 | 646136566165 |
oct | 142535605367 |
9 | 37161758531 |
10 | 13245025015 |
11 | 5687520372 |
12 | 2697895047 |
13 | 1331091b11 |
14 | 8d910c235 |
15 | 527c01cca |
hex | 315770af7 |
13245025015 has 4 divisors (see below), whose sum is σ = 15894030024. Its totient is φ = 10596020008.
The previous prime is 13245024979. The next prime is 13245025037. The reversal of 13245025015 is 51052054231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51052054231 = 479 ⋅106580489.
It is a cyclic number.
It is not a de Polignac number, because 13245025015 - 213 = 13245016823 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324502497 + ... + 1324502506.
It is an arithmetic number, because the mean of its divisors is an integer number (3973507506).
Almost surely, 213245025015 is an apocalyptic number.
13245025015 is a deficient number, since it is larger than the sum of its proper divisors (2649005009).
13245025015 is an equidigital number, since it uses as much as digits as its factorization.
13245025015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2649005008.
The product of its (nonzero) digits is 6000, while the sum is 28.
Adding to 13245025015 its reverse (51052054231), we get a palindrome (64297079246).
The spelling of 13245025015 in words is "thirteen billion, two hundred forty-five million, twenty-five thousand, fifteen".
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