Base | Representation |
---|---|
bin | 100000000001010101… |
… | …0110101101101000100 |
3 | 20120111022002101220110 |
4 | 1000002222311231010 |
5 | 2111312122324223 |
6 | 51331224433020 |
7 | 4653020401410 |
oct | 1000252655504 |
9 | 216438071813 |
10 | 68764261188 |
11 | 271876a6227 |
12 | 113b1018770 |
13 | 663b41c05c |
14 | 3484861d40 |
15 | 1bc6db5d93 |
hex | 1002ab5b44 |
68764261188 has 24 divisors (see below), whose sum is σ = 183371363392. Its totient is φ = 19646931744.
The previous prime is 68764261187. The next prime is 68764261193. The reversal of 68764261188 is 88116246786.
It is not an unprimeable number, because it can be changed into a prime (68764261187) 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, 409310995 + ... + 409311162.
Almost surely, 268764261188 is an apocalyptic number.
It is an amenable number.
68764261188 is an abundant number, since it is smaller than the sum of its proper divisors (114607102204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68764261188 is a wasteful number, since it uses less digits than its factorization.
68764261188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 818622171 (or 818622169 counting only the distinct ones).
The product of its digits is 6193152, while the sum is 57.
The spelling of 68764261188 in words is "sixty-eight billion, seven hundred sixty-four million, two hundred sixty-one thousand, one hundred eighty-eight".
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