Base | Representation |
---|---|
bin | 11000011111000101… |
… | …00010001011010101 |
3 | 1020221010210022222001 |
4 | 30033202202023111 |
5 | 203410234104023 |
6 | 10012232035301 |
7 | 643521603241 |
oct | 141742421325 |
9 | 36833708861 |
10 | 13145613013 |
11 | 56363a0695 |
12 | 266a532b31 |
13 | 13165c5b50 |
14 | 8c9c31421 |
15 | 51e1166ad |
hex | 30f8a22d5 |
13145613013 has 8 divisors (see below), whose sum is σ = 14315880600. Its totient is φ = 11998069248.
The previous prime is 13145612999. The next prime is 13145613031. The reversal of 13145613013 is 31031654131.
It can be written as a sum of positive squares in 4 ways, for example, as 900420049 + 12245192964 = 30007^2 + 110658^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13145613013 - 25 = 13145612981 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 (13145613053) 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, 5679748 + ... + 5682061.
It is an arithmetic number, because the mean of its divisors is an integer number (1789485075).
Almost surely, 213145613013 is an apocalyptic number.
13145613013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
13145613013 is a deficient number, since it is larger than the sum of its proper divisors (1170267587).
13145613013 is a wasteful number, since it uses less digits than its factorization.
13145613013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11361911.
The product of its (nonzero) digits is 3240, while the sum is 28.
The spelling of 13145613013 in words is "thirteen billion, one hundred forty-five million, six hundred thirteen thousand, thirteen".
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