Base | Representation |
---|---|
bin | 1000111111011… |
… | …01011000011000 |
3 | 12020220210110002 |
4 | 10133231120120 |
5 | 123301434313 |
6 | 11252312132 |
7 | 1604032622 |
oct | 437553030 |
9 | 166823402 |
10 | 75421208 |
11 | 39634085 |
12 | 21312648 |
13 | 12819245 |
14 | a033c12 |
15 | 694c058 |
hex | 47ed618 |
75421208 has 16 divisors (see below), whose sum is σ = 142264080. Its totient is φ = 37484128.
The previous prime is 75421201. The next prime is 75421219. The reversal of 75421208 is 80212457.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (75421201) 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, 26891 + ... + 29562.
It is an arithmetic number, because the mean of its divisors is an integer number (8891505).
Almost surely, 275421208 is an apocalyptic number.
It is an amenable number.
75421208 is a deficient number, since it is larger than the sum of its proper divisors (66842872).
75421208 is a wasteful number, since it uses less digits than its factorization.
75421208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56626 (or 56622 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 29.
The square root of 75421208 is about 8684.5384448455. The cubic root of 75421208 is about 422.5043273018.
The spelling of 75421208 in words is "seventy-five million, four hundred twenty-one thousand, two hundred eight".
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