Base | Representation |
---|---|
bin | 1000111100010… |
… | …11011011111001 |
3 | 12020011102010110 |
4 | 10132023123321 |
5 | 123201120100 |
6 | 11235534533 |
7 | 1600442163 |
oct | 436133371 |
9 | 166142113 |
10 | 75020025 |
11 | 3938a723 |
12 | 2115a449 |
13 | 12708762 |
14 | 9d6b933 |
15 | 68bd250 |
hex | 478b6f9 |
75020025 has 24 divisors (see below), whose sum is σ = 124706304. Its totient is φ = 39793600.
The previous prime is 75020021. The next prime is 75020027. The reversal of 75020025 is 52002057.
It is not a de Polignac number, because 75020025 - 22 = 75020021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 75019983 and 75020010.
It is not an unprimeable number, because it can be changed into a prime (75020021) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11707 + ... + 16943.
It is an arithmetic number, because the mean of its divisors is an integer number (5196096).
Almost surely, 275020025 is an apocalyptic number.
75020025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
75020025 is a deficient number, since it is larger than the sum of its proper divisors (49686279).
75020025 is a wasteful number, since it uses less digits than its factorization.
75020025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5441 (or 5436 counting only the distinct ones).
The product of its (nonzero) digits is 700, while the sum is 21.
The square root of 75020025 is about 8661.4101045961. The cubic root of 75020025 is about 421.7538620646.
The spelling of 75020025 in words is "seventy-five million, twenty thousand, twenty-five".
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