Base | Representation |
---|---|
bin | 100101100100000110… |
… | …0100100001000010100 |
3 | 21201012220100112002020 |
4 | 1023020030210020110 |
5 | 2310202021220434 |
6 | 101020342213140 |
7 | 5554013642445 |
oct | 1131014441024 |
9 | 251186315066 |
10 | 80668148244 |
11 | 31236080812 |
12 | 137737241b0 |
13 | 77b76a13c8 |
14 | 3c937c12cc |
15 | 2171e9d849 |
hex | 12c8324214 |
80668148244 has 12 divisors (see below), whose sum is σ = 188225679264. Its totient is φ = 26889382744.
The previous prime is 80668148243. The next prime is 80668148263. The reversal of 80668148244 is 44284186608.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×806681482442 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80668148243) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3361172832 + ... + 3361172855.
It is an arithmetic number, because the mean of its divisors is an integer number (15685473272).
Almost surely, 280668148244 is an apocalyptic number.
It is an amenable number.
80668148244 is an abundant number, since it is smaller than the sum of its proper divisors (107557531020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80668148244 is a wasteful number, since it uses less digits than its factorization.
80668148244 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6722345694 (or 6722345692 counting only the distinct ones).
The product of its (nonzero) digits is 2359296, while the sum is 51.
The spelling of 80668148244 in words is "eighty billion, six hundred sixty-eight million, one hundred forty-eight thousand, two hundred forty-four".
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