Base | Representation |
---|---|
bin | 1010001010010… |
… | …10110001110111 |
3 | 12221101200121021 |
4 | 11011022301313 |
5 | 133310202301 |
6 | 12243002011 |
7 | 2053351615 |
oct | 505126167 |
9 | 187350537 |
10 | 85240951 |
11 | 44130874 |
12 | 24669307 |
13 | 14876a43 |
14 | b46c6b5 |
15 | 773b8a1 |
hex | 514ac77 |
85240951 has 4 divisors (see below), whose sum is σ = 86513272. Its totient is φ = 83968632.
The previous prime is 85240949. The next prime is 85240999. The reversal of 85240951 is 15904258.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15904258 = 2 ⋅7952129.
It is a cyclic number.
It is not a de Polignac number, because 85240951 - 21 = 85240949 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85240901) 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, 636060 + ... + 636193.
It is an arithmetic number, because the mean of its divisors is an integer number (21628318).
Almost surely, 285240951 is an apocalyptic number.
85240951 is a deficient number, since it is larger than the sum of its proper divisors (1272321).
85240951 is a wasteful number, since it uses less digits than its factorization.
85240951 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1272320.
The product of its (nonzero) digits is 14400, while the sum is 34.
The square root of 85240951 is about 9232.6026124815. The cubic root of 85240951 is about 440.0980342853.
The spelling of 85240951 in words is "eighty-five million, two hundred forty thousand, nine hundred fifty-one".
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