Base | Representation |
---|---|
bin | 1001000010101… |
… | …10000101100001 |
3 | 12021201120202021 |
4 | 10201112011201 |
5 | 123404200311 |
6 | 11305421441 |
7 | 1610500156 |
oct | 441260541 |
9 | 167646667 |
10 | 75850081 |
11 | 398a731a |
12 | 2149a881 |
13 | 12939508 |
14 | a10622d |
15 | 69d4171 |
hex | 4856161 |
75850081 has 4 divisors (see below), whose sum is σ = 76918464. Its totient is φ = 74781700.
The previous prime is 75850013. The next prime is 75850153. The reversal of 75850081 is 18005857.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 75850081 - 27 = 75849953 is a prime.
It is a super-2 number, since 2×758500812 = 11506469575413122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (75850381) 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, 534085 + ... + 534226.
It is an arithmetic number, because the mean of its divisors is an integer number (19229616).
Almost surely, 275850081 is an apocalyptic number.
75850081 is a gapful number since it is divisible by the number (71) formed by its first and last digit.
It is an amenable number.
75850081 is a deficient number, since it is larger than the sum of its proper divisors (1068383).
75850081 is a wasteful number, since it uses less digits than its factorization.
75850081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1068382.
The product of its (nonzero) digits is 11200, while the sum is 34.
The square root of 75850081 is about 8709.1951981799. The cubic root of 75850081 is about 423.3036529642.
The spelling of 75850081 in words is "seventy-five million, eight hundred fifty thousand, eighty-one".
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