Base | Representation |
---|---|
bin | 100101101000010000… |
… | …1011100001101010111 |
3 | 21201120122012112011022 |
4 | 1023100201130031113 |
5 | 2310443301313201 |
6 | 101042252231355 |
7 | 5560331203016 |
oct | 1132041341527 |
9 | 251518175138 |
10 | 80807838551 |
11 | 312a7a11150 |
12 | 137b246b55b |
13 | 780a6007ab |
14 | 3ca8184a7d |
15 | 217e39341b |
hex | 12d085c357 |
80807838551 has 16 divisors (see below), whose sum is σ = 88360500480. Its totient is φ = 73289810880.
The previous prime is 80807838523. The next prime is 80807838577. The reversal of 80807838551 is 15583870808.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-80807838551 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80807838493 and 80807838502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80807838521) 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 15 ways as a sum of consecutive naturals, for example, 8849150 + ... + 8858276.
It is an arithmetic number, because the mean of its divisors is an integer number (5522531280).
Almost surely, 280807838551 is an apocalyptic number.
80807838551 is a deficient number, since it is larger than the sum of its proper divisors (7552661929).
80807838551 is a wasteful number, since it uses less digits than its factorization.
80807838551 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10934.
The product of its (nonzero) digits is 2150400, while the sum is 53.
The spelling of 80807838551 in words is "eighty billion, eight hundred seven million, eight hundred thirty-eight thousand, five hundred fifty-one".
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