Base | Representation |
---|---|
bin | 1001101001000… |
… | …00110111111001 |
3 | 12122011212122102 |
4 | 10310200313321 |
5 | 131201000001 |
6 | 12005233145 |
7 | 2001266114 |
oct | 464406771 |
9 | 178155572 |
10 | 80875001 |
11 | 41719649 |
12 | 231027b5 |
13 | 139a873c |
14 | aa5357b |
15 | 7177e6b |
hex | 4d20df9 |
80875001 has 32 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 67737600.
The previous prime is 80874977. The next prime is 80875009. The reversal of 80875001 is 10057808.
It is a happy number.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80875001 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80875009) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410435 + ... + 410631.
It is an arithmetic number, because the mean of its divisors is an integer number (2993760).
Almost surely, 280875001 is an apocalyptic number.
It is an amenable number.
80875001 is a deficient number, since it is larger than the sum of its proper divisors (14925319).
80875001 is a wasteful number, since it uses less digits than its factorization.
80875001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 305.
The product of its (nonzero) digits is 2240, while the sum is 29.
The square root of 80875001 is about 8993.0529299009. The cubic root of 80875001 is about 432.4521889078.
The spelling of 80875001 in words is "eighty million, eight hundred seventy-five thousand, one".
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