Base | Representation |
---|---|
bin | 100101100100111110… |
… | …0000100101110101000 |
3 | 21201021221100122011200 |
4 | 1023021330010232220 |
5 | 2310232012123002 |
6 | 101023304524200 |
7 | 5554520260503 |
oct | 1131174045650 |
9 | 251257318150 |
10 | 80697379752 |
11 | 31250626890 |
12 | 13781480660 |
13 | 77c0767662 |
14 | 3c9763013a |
15 | 2174824b1c |
hex | 12c9f04ba8 |
80697379752 has 96 divisors (see below), whose sum is σ = 240534290880. Its totient is φ = 24237319680.
The previous prime is 80697379751. The next prime is 80697379757. The reversal of 80697379752 is 25797379608.
It is a self number, because there is not a number n which added to its sum of digits gives 80697379752.
It is not an unprimeable number, because it can be changed into a prime (80697379751) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361348 + ... + 540339.
It is an arithmetic number, because the mean of its divisors is an integer number (2505565530).
Almost surely, 280697379752 is an apocalyptic number.
It is an amenable number.
80697379752 is an abundant number, since it is smaller than the sum of its proper divisors (159836911128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80697379752 is a wasteful number, since it uses less digits than its factorization.
80697379752 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 901823 (or 901816 counting only the distinct ones).
The product of its (nonzero) digits is 40007520, while the sum is 63.
The spelling of 80697379752 in words is "eighty billion, six hundred ninety-seven million, three hundred seventy-nine thousand, seven hundred fifty-two".
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