Base | Representation |
---|---|
bin | 100101010010111000… |
… | …1101000110100110000 |
3 | 21122201122201021221210 |
4 | 1022211301220310300 |
5 | 2303011202223430 |
6 | 100443152520120 |
7 | 5533502261556 |
oct | 1124561506460 |
9 | 248648637853 |
10 | 80090664240 |
11 | 30a6a101504 |
12 | 13632250040 |
13 | 7724b5a1b2 |
14 | 3c3ac19bd6 |
15 | 213b42c2b0 |
hex | 12a5c68d30 |
80090664240 has 40 divisors (see below), whose sum is σ = 248281059888. Its totient is φ = 21357510400.
The previous prime is 80090664221. The next prime is 80090664257. The reversal of 80090664240 is 4246609008.
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166855311 + ... + 166855790.
Almost surely, 280090664240 is an apocalyptic number.
80090664240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80090664240 is an abundant number, since it is smaller than the sum of its proper divisors (168190395648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80090664240 is a wasteful number, since it uses less digits than its factorization.
80090664240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333711117 (or 333711111 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 39.
The spelling of 80090664240 in words is "eighty billion, ninety million, six hundred sixty-four thousand, two hundred forty".
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