Base | Representation |
---|---|
bin | 1100111100111010111011… |
… | …00101000011010011010011 |
3 | 10201211210201120112102121201 |
4 | 12132131131211003103103 |
5 | 12213120102010234330 |
6 | 140324115234132031 |
7 | 5666502034446424 |
oct | 636353545032323 |
9 | 121753646472551 |
10 | 28481498133715 |
11 | 9090a32204790 |
12 | 323baa4121017 |
13 | 12b7a41b38993 |
14 | 7067247b364b |
15 | 345d0848eeca |
hex | 19e75d9434d3 |
28481498133715 has 16 divisors (see below), whose sum is σ = 37285342295040. Its totient is φ = 20713554596320.
The previous prime is 28481498133709. The next prime is 28481498133719. The reversal of 28481498133715 is 51733189418482.
It is a happy number.
It is not a de Polignac number, because 28481498133715 - 233 = 28472908199123 is a prime.
It is a super-2 number, since 2×284814981337152 (a number of 28 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (28481498133719) 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, 1160316 + ... + 7636054.
It is an arithmetic number, because the mean of its divisors is an integer number (2330333893440).
Almost surely, 228481498133715 is an apocalyptic number.
28481498133715 is a deficient number, since it is larger than the sum of its proper divisors (8803844161325).
28481498133715 is a wasteful number, since it uses less digits than its factorization.
28481498133715 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6555722.
The product of its digits is 46448640, while the sum is 64.
The spelling of 28481498133715 in words is "twenty-eight trillion, four hundred eighty-one billion, four hundred ninety-eight million, one hundred thirty-three thousand, seven hundred fifteen".
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