Base | Representation |
---|---|
bin | 111111111000101110… |
… | …000011011100001101 |
3 | 20120001122222111201202 |
4 | 333320232003130031 |
5 | 2110441404103400 |
6 | 51302502515245 |
7 | 4645622461526 |
oct | 777056033415 |
9 | 216048874652 |
10 | 68597331725 |
11 | 2710145069a |
12 | 11365135b25 |
13 | 6612973520 |
14 | 346a60b84d |
15 | 1bb73e04d5 |
hex | ff8b8370d |
68597331725 has 24 divisors (see below), whose sum is σ = 91719103560. Its totient is φ = 50592741120.
The previous prime is 68597331713. The next prime is 68597331749. The reversal of 68597331725 is 52713379586.
It can be written as a sum of positive squares in 12 ways, for example, as 31167077764 + 37430253961 = 176542^2 + 193469^2 .
It is not a de Polignac number, because 68597331725 - 210 = 68597330701 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126611 + ... + 391439.
It is an arithmetic number, because the mean of its divisors is an integer number (3821629315).
Almost surely, 268597331725 is an apocalyptic number.
68597331725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
68597331725 is a deficient number, since it is larger than the sum of its proper divisors (23121771835).
68597331725 is a wasteful number, since it uses less digits than its factorization.
68597331725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 265649 (or 265644 counting only the distinct ones).
The product of its digits is 9525600, while the sum is 56.
The spelling of 68597331725 in words is "sixty-eight billion, five hundred ninety-seven million, three hundred thirty-one thousand, seven hundred twenty-five".
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