Base | Representation |
---|---|
bin | 100101010011110111… |
… | …1111010010111101011 |
3 | 21122210222000001101012 |
4 | 1022213233322113223 |
5 | 2303043141010001 |
6 | 100450334214135 |
7 | 5534353530104 |
oct | 1124757722753 |
9 | 248728001335 |
10 | 80123766251 |
11 | 30a86860541 |
12 | 1364135434b |
13 | 772b97a099 |
14 | 3c413953ab |
15 | 213e2ba2bb |
hex | 12a7bfa5eb |
80123766251 has 12 divisors (see below), whose sum is σ = 87290599104. Its totient is φ = 73458111600.
The previous prime is 80123766227. The next prime is 80123766259. The reversal of 80123766251 is 15266732108.
It is a de Polignac number, because none of the positive numbers 2k-80123766251 is a prime.
It is a super-3 number, since 3×801237662513 (a number of 34 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80123766199 and 80123766208.
It is not an unprimeable number, because it can be changed into a prime (80123766259) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3568640 + ... + 3591021.
It is an arithmetic number, because the mean of its divisors is an integer number (7274216592).
Almost surely, 280123766251 is an apocalyptic number.
80123766251 is a deficient number, since it is larger than the sum of its proper divisors (7166832853).
80123766251 is a wasteful number, since it uses less digits than its factorization.
80123766251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7159730 (or 7159711 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 41.
The spelling of 80123766251 in words is "eighty billion, one hundred twenty-three million, seven hundred sixty-six thousand, two hundred fifty-one".
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