Base | Representation |
---|---|
bin | 1000111101100… |
… | …00000101010010 |
3 | 12020110001000220 |
4 | 10132300011102 |
5 | 123220421010 |
6 | 11243053510 |
7 | 1601635620 |
oct | 436600522 |
9 | 166401026 |
10 | 75170130 |
11 | 39482482 |
12 | 21211296 |
13 | 1275bb89 |
14 | 9daa510 |
15 | 68ec970 |
hex | 47b0152 |
75170130 has 64 divisors (see below), whose sum is σ = 209710080. Its totient is φ = 16887744.
The previous prime is 75170129. The next prime is 75170143. The reversal of 75170130 is 3107157.
It is a self number, because there is not a number n which added to its sum of digits gives 75170130.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9357 + ... + 15423.
It is an arithmetic number, because the mean of its divisors is an integer number (3276720).
Almost surely, 275170130 is an apocalyptic number.
75170130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 75170130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104855040).
75170130 is an abundant number, since it is smaller than the sum of its proper divisors (134539950).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75170130 is a wasteful number, since it uses less digits than its factorization.
75170130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6143.
The product of its (nonzero) digits is 735, while the sum is 24.
The square root of 75170130 is about 8670.0709339659. The cubic root of 75170130 is about 422.0349656195.
Adding to 75170130 its reverse (3107157), we get a palindrome (78277287).
The spelling of 75170130 in words is "seventy-five million, one hundred seventy thousand, one hundred thirty".
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