Base | Representation |
---|---|
bin | 1001100011101… |
… | …01010111000101 |
3 | 12120212011222022 |
4 | 10301311113011 |
5 | 131011004420 |
6 | 11542212525 |
7 | 1662312011 |
oct | 461652705 |
9 | 176764868 |
10 | 80172485 |
11 | 41289858 |
12 | 22a24145 |
13 | 137c0a53 |
14 | a90d541 |
15 | 7089c25 |
hex | 4c755c5 |
80172485 has 8 divisors (see below), whose sum is σ = 96548640. Its totient is φ = 63910224.
The previous prime is 80172467. The next prime is 80172509. The reversal of 80172485 is 58427108.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80172485 - 214 = 80156101 is a prime.
It is a congruent number.
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, 26915 + ... + 29744.
It is an arithmetic number, because the mean of its divisors is an integer number (12068580).
Almost surely, 280172485 is an apocalyptic number.
It is an amenable number.
80172485 is a deficient number, since it is larger than the sum of its proper divisors (16376155).
80172485 is a wasteful number, since it uses less digits than its factorization.
80172485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56947.
The product of its (nonzero) digits is 17920, while the sum is 35.
The square root of 80172485 is about 8953.9089229230. The cubic root of 80172485 is about 431.1963887707.
The spelling of 80172485 in words is "eighty million, one hundred seventy-two thousand, four hundred eighty-five".
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