Base | Representation |
---|---|
bin | 1001000011101… |
… | …01110100100001 |
3 | 12021222012001111 |
4 | 10201311310201 |
5 | 123422330230 |
6 | 11312303321 |
7 | 1611551140 |
oct | 441656441 |
9 | 167865044 |
10 | 75980065 |
11 | 39985a47 |
12 | 21541b41 |
13 | 12983725 |
14 | a13b757 |
15 | 6a0c92a |
hex | 4875d21 |
75980065 has 16 divisors (see below), whose sum is σ = 104352768. Its totient is φ = 52024896.
The previous prime is 75980053. The next prime is 75980071. The reversal of 75980065 is 56008957.
It is a happy number.
75980065 is nontrivially palindromic in base 4.
It is not a de Polignac number, because 75980065 - 25 = 75980033 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34384 + ... + 36526.
It is an arithmetic number, because the mean of its divisors is an integer number (6522048).
Almost surely, 275980065 is an apocalyptic number.
It is an amenable number.
75980065 is a deficient number, since it is larger than the sum of its proper divisors (28372703).
75980065 is a wasteful number, since it uses less digits than its factorization.
75980065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3168.
The product of its (nonzero) digits is 75600, while the sum is 40.
The square root of 75980065 is about 8716.6544614319. The cubic root of 75980065 is about 423.5453195977.
The spelling of 75980065 in words is "seventy-five million, nine hundred eighty thousand, sixty-five".
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