Base | Representation |
---|---|
bin | 100000000100100011… |
… | …1111001001001011000 |
3 | 20120202211211120112222 |
4 | 1000021013321021120 |
5 | 2112022332301020 |
6 | 51350053323212 |
7 | 4655503636322 |
oct | 1001107711130 |
9 | 216684746488 |
10 | 68872540760 |
11 | 27232832281 |
12 | 11421336508 |
13 | 66579a12ca |
14 | 3494daa612 |
15 | 1bd1653b25 |
hex | 10091f9258 |
68872540760 has 16 divisors (see below), whose sum is σ = 154963216800. Its totient is φ = 27549016288.
The previous prime is 68872540669. The next prime is 68872540769. The reversal of 68872540760 is 6704527886.
It is a super-2 number, since 2×688725407602 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68872540769) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860906720 + ... + 860906799.
It is an arithmetic number, because the mean of its divisors is an integer number (9685201050).
Almost surely, 268872540760 is an apocalyptic number.
It is an amenable number.
68872540760 is an abundant number, since it is smaller than the sum of its proper divisors (86090676040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68872540760 is a wasteful number, since it uses less digits than its factorization.
68872540760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1721813530 (or 1721813526 counting only the distinct ones).
The product of its (nonzero) digits is 4515840, while the sum is 53.
The spelling of 68872540760 in words is "sixty-eight billion, eight hundred seventy-two million, five hundred forty thousand, seven hundred sixty".
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