Base | Representation |
---|---|
bin | 1000111101110… |
… | …10010011100000 |
3 | 12020112011110122 |
4 | 10132322103200 |
5 | 123223241000 |
6 | 11244015412 |
7 | 1602201653 |
oct | 436722340 |
9 | 166464418 |
10 | 75212000 |
11 | 39500986 |
12 | 21231568 |
13 | 12774c56 |
14 | 9dbb89a |
15 | 690a085 |
hex | 47ba4e0 |
75212000 has 48 divisors (see below), whose sum is σ = 184805712. Its totient is φ = 30083200.
The previous prime is 75211991. The next prime is 75212017. The reversal of 75212000 is 21257.
It is a self number, because there is not a number n which added to its sum of digits gives 75212000.
It is a congruent number.
It is an unprimeable number.
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, 5402 + ... + 13401.
It is an arithmetic number, because the mean of its divisors is an integer number (3850119).
Almost surely, 275212000 is an apocalyptic number.
It is an amenable number.
75212000 is an abundant number, since it is smaller than the sum of its proper divisors (109593712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75212000 is a wasteful number, since it uses less digits than its factorization.
75212000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18828 (or 18810 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 17.
The square root of 75212000 is about 8672.4852262774. The cubic root of 75212000 is about 422.1133093453.
Adding to 75212000 its reverse (21257), we get a palindrome (75233257).
The spelling of 75212000 in words is "seventy-five million, two hundred twelve thousand".
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