Base | Representation |
---|---|
bin | 1001000001101… |
… | …00011000011001 |
3 | 12021110120101002 |
4 | 10200310120121 |
5 | 123340241100 |
6 | 11302434345 |
7 | 1606353524 |
oct | 440643031 |
9 | 167416332 |
10 | 75712025 |
11 | 39812624 |
12 | 214329b5 |
13 | 128bb71c |
14 | a0abbbb |
15 | 69a82d5 |
hex | 4834619 |
75712025 has 12 divisors (see below), whose sum is σ = 94365612. Its totient is φ = 60258240.
The previous prime is 75712009. The next prime is 75712061. The reversal of 75712025 is 52021757.
It can be written as a sum of positive squares in 6 ways, for example, as 1700416 + 74011609 = 1304^2 + 8603^2 .
It is not a de Polignac number, because 75712025 - 24 = 75712009 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2762 + ... + 12611.
It is an arithmetic number, because the mean of its divisors is an integer number (7863801).
Almost surely, 275712025 is an apocalyptic number.
It is an amenable number.
75712025 is a deficient number, since it is larger than the sum of its proper divisors (18653587).
75712025 is a wasteful number, since it uses less digits than its factorization.
75712025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15580 (or 15575 counting only the distinct ones).
The product of its (nonzero) digits is 4900, while the sum is 29.
The square root of 75712025 is about 8701.2657125271. The cubic root of 75712025 is about 423.0466763077.
The spelling of 75712025 in words is "seventy-five million, seven hundred twelve thousand, twenty-five".
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