Base | Representation |
---|---|
bin | 1010001110101… |
… | …00111111001011 |
3 | 12222110110010221 |
4 | 11013110333023 |
5 | 133431311201 |
6 | 12303050511 |
7 | 2061230221 |
oct | 507247713 |
9 | 188413127 |
10 | 85807051 |
11 | 44488120 |
12 | 248a0a37 |
13 | 14a14605 |
14 | b578b11 |
15 | 77ee4a1 |
hex | 51d4fcb |
85807051 has 8 divisors (see below), whose sum is σ = 94132800. Its totient is φ = 77568840.
The previous prime is 85807049. The next prime is 85807061. The reversal of 85807051 is 15070858.
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 85807051 - 21 = 85807049 is a prime.
It is a super-3 number, since 3×858070513 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 85806998 and 85807016.
It is not an unprimeable number, because it can be changed into a prime (85807031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19821 + ... + 23758.
It is an arithmetic number, because the mean of its divisors is an integer number (11766600).
Almost surely, 285807051 is an apocalyptic number.
85807051 is a deficient number, since it is larger than the sum of its proper divisors (8325749).
85807051 is a wasteful number, since it uses less digits than its factorization.
85807051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43769.
The product of its (nonzero) digits is 11200, while the sum is 34.
The square root of 85807051 is about 9263.2095409744. The cubic root of 85807051 is about 441.0701413690.
The spelling of 85807051 in words is "eighty-five million, eight hundred seven thousand, fifty-one".
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