Base | Representation |
---|---|
bin | 1001000011010… |
… | …01110101101001 |
3 | 12021212200201201 |
4 | 10201221311221 |
5 | 123414242420 |
6 | 11311244201 |
7 | 1611255064 |
oct | 441516551 |
9 | 167780651 |
10 | 75930985 |
11 | 39952089 |
12 | 21519661 |
13 | 129672a0 |
14 | a1278db |
15 | 69ed10a |
hex | 4869d69 |
75930985 has 8 divisors (see below), whose sum is σ = 98126280. Its totient is φ = 56072064.
The previous prime is 75930949. The next prime is 75930989. The reversal of 75930985 is 58903957.
It can be written as a sum of positive squares in 4 ways, for example, as 12362256 + 63568729 = 3516^2 + 7973^2 .
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 75930985 - 29 = 75930473 is a prime.
It is not an unprimeable number, because it can be changed into a prime (75930989) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584020 + ... + 584149.
It is an arithmetic number, because the mean of its divisors is an integer number (12265785).
Almost surely, 275930985 is an apocalyptic number.
It is an amenable number.
75930985 is a deficient number, since it is larger than the sum of its proper divisors (22195295).
75930985 is a wasteful number, since it uses less digits than its factorization.
75930985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1168187.
The product of its (nonzero) digits is 340200, while the sum is 46.
The square root of 75930985 is about 8713.8387063337. The cubic root of 75930985 is about 423.4541023297.
The spelling of 75930985 in words is "seventy-five million, nine hundred thirty thousand, nine hundred eighty-five".
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