Base | Representation |
---|---|
bin | 1010001100010… |
… | …01010110100011 |
3 | 12221212201011212 |
4 | 11012021112203 |
5 | 133341403001 |
6 | 12252300335 |
7 | 2055500060 |
oct | 506112643 |
9 | 187781155 |
10 | 85497251 |
11 | 44296394 |
12 | 247716ab |
13 | 149365b8 |
14 | b4d7c67 |
15 | 778c7bb |
hex | 51895a3 |
85497251 has 4 divisors (see below), whose sum is σ = 97711152. Its totient is φ = 73283352.
The previous prime is 85497229. The next prime is 85497299. The reversal of 85497251 is 15279458.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-85497251 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 85497199 and 85497208.
It is not an unprimeable number, because it can be changed into a prime (85497151) 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, 6106940 + ... + 6106953.
It is an arithmetic number, because the mean of its divisors is an integer number (24427788).
Almost surely, 285497251 is an apocalyptic number.
85497251 is a deficient number, since it is larger than the sum of its proper divisors (12213901).
85497251 is a wasteful number, since it uses less digits than its factorization.
85497251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12213900.
The product of its digits is 100800, while the sum is 41.
The square root of 85497251 is about 9246.4723543630. The cubic root of 85497251 is about 440.5386842375.
The spelling of 85497251 in words is "eighty-five million, four hundred ninety-seven thousand, two hundred fifty-one".
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