Base | Representation |
---|---|
bin | 100101101010001011… |
… | …1111100001010111101 |
3 | 21201202010210110212020 |
4 | 1023110113330022331 |
5 | 2311111322110033 |
6 | 101052521230353 |
7 | 5562044353464 |
oct | 1132427741275 |
9 | 251663713766 |
10 | 80872456893 |
11 | 31330436938 |
12 | 138100323b9 |
13 | 781ab068b7 |
14 | 3cb29a59db |
15 | 2184da96b3 |
hex | 12d45fc2bd |
80872456893 has 8 divisors (see below), whose sum is σ = 108941591808. Its totient is φ = 53359146624.
The previous prime is 80872456853. The next prime is 80872456979. The reversal of 80872456893 is 39865427808.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80872456893 - 216 = 80872391357 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80872456853) 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, 138955821 + ... + 138956402.
It is an arithmetic number, because the mean of its divisors is an integer number (13617698976).
Almost surely, 280872456893 is an apocalyptic number.
It is an amenable number.
80872456893 is a deficient number, since it is larger than the sum of its proper divisors (28069134915).
80872456893 is a wasteful number, since it uses less digits than its factorization.
80872456893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 277912323.
The product of its (nonzero) digits is 23224320, while the sum is 60.
The spelling of 80872456893 in words is "eighty billion, eight hundred seventy-two million, four hundred fifty-six thousand, eight hundred ninety-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •