Base | Representation |
---|---|
bin | 11000010100000011… |
… | …10001010001000011 |
3 | 1020200200210010002002 |
4 | 30022001301101003 |
5 | 203213100403422 |
6 | 5555130014215 |
7 | 641316561611 |
oct | 141201612103 |
9 | 36620703062 |
10 | 13053137987 |
11 | 559917984a |
12 | 264357736b |
13 | 13003b84b6 |
14 | 8bb83c6b1 |
15 | 515e4b692 |
hex | 30a071443 |
13053137987 has 8 divisors (see below), whose sum is σ = 13116116160. Its totient is φ = 12990285760.
The previous prime is 13053137983. The next prime is 13053137989. The reversal of 13053137987 is 78973135031.
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 13053137987 - 22 = 13053137983 is a prime.
It is a super-2 number, since 2×130531379872 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13053137983) 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, 179687 + ... + 241647.
It is an arithmetic number, because the mean of its divisors is an integer number (1639514520).
Almost surely, 213053137987 is an apocalyptic number.
13053137987 is a deficient number, since it is larger than the sum of its proper divisors (62978173).
13053137987 is an equidigital number, since it uses as much as digits as its factorization.
13053137987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62973.
The product of its (nonzero) digits is 476280, while the sum is 47.
The spelling of 13053137987 in words is "thirteen billion, fifty-three million, one hundred thirty-seven thousand, nine hundred eighty-seven".
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