Base | Representation |
---|---|
bin | 1000111100111… |
… | …10011110101001 |
3 | 12020022101010100 |
4 | 10132132132221 |
5 | 123211114100 |
6 | 11241340013 |
7 | 1601215452 |
oct | 436363651 |
9 | 166271110 |
10 | 75098025 |
11 | 39433292 |
12 | 21197609 |
13 | 12735102 |
14 | 9d8c129 |
15 | 68d6400 |
hex | 479e7a9 |
75098025 has 18 divisors (see below), whose sum is σ = 134509310. Its totient is φ = 40052160.
The previous prime is 75098011. The next prime is 75098029. The reversal of 75098025 is 52089057.
It can be written as a sum of positive squares in 3 ways, for example, as 1327104 + 73770921 = 1152^2 + 8589^2 .
It is not a de Polignac number, because 75098025 - 214 = 75081641 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (75098029) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 166660 + ... + 167109.
Almost surely, 275098025 is an apocalyptic number.
75098025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
75098025 is a deficient number, since it is larger than the sum of its proper divisors (59411285).
75098025 is a wasteful number, since it uses less digits than its factorization.
75098025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333785 (or 333777 counting only the distinct ones).
The product of its (nonzero) digits is 25200, while the sum is 36.
The square root of 75098025 is about 8665.9116658318. The cubic root of 75098025 is about 421.8999804138.
The spelling of 75098025 in words is "seventy-five million, ninety-eight thousand, twenty-five".
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