Base | Representation |
---|---|
bin | 100101100011100010… |
… | …0101101011111001000 |
3 | 21201011120220112212222 |
4 | 1023013010231133020 |
5 | 2310132210442300 |
6 | 101014430353212 |
7 | 5553364562042 |
oct | 1130704553710 |
9 | 251146815788 |
10 | 80649312200 |
11 | 31226485a36 |
12 | 1376935b808 |
13 | 77b3807a12 |
14 | 3c910baa92 |
15 | 21704cc785 |
hex | 12c712d7c8 |
80649312200 has 108 divisors (see below), whose sum is σ = 192383706465. Its totient is φ = 31442026560.
The previous prime is 80649312187. The next prime is 80649312269. The reversal of 80649312200 is 221394608.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 79036325956 + 1612986244 = 281134^2 + 40162^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=200810.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 172696367 + ... + 172696833.
Almost surely, 280649312200 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80649312200
80649312200 is an abundant number, since it is smaller than the sum of its proper divisors (111734394265).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80649312200 is an equidigital number, since it uses as much as digits as its factorization.
80649312200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1036 (or 517 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 35.
The spelling of 80649312200 in words is "eighty billion, six hundred forty-nine million, three hundred twelve thousand, two hundred".
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