Base | Representation |
---|---|
bin | 1000101011101… |
… | …00111100100110 |
3 | 12002001012000111 |
4 | 10111310330212 |
5 | 122121041013 |
6 | 11121003234 |
7 | 1543023400 |
oct | 425647446 |
9 | 162035014 |
10 | 72830758 |
11 | 38124910 |
12 | 2048351a |
13 | 12120130 |
14 | 995bb70 |
15 | 65d973d |
hex | 4574f26 |
72830758 has 48 divisors (see below), whose sum is σ = 149328144. Its totient is φ = 26187840.
The previous prime is 72830731. The next prime is 72830761. The reversal of 72830758 is 85703827.
It is a self number, because there is not a number n which added to its sum of digits gives 72830758.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11416 + ... + 16612.
It is an arithmetic number, because the mean of its divisors is an integer number (3111003).
Almost surely, 272830758 is an apocalyptic number.
72830758 is an abundant number, since it is smaller than the sum of its proper divisors (76497386).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72830758 is a wasteful number, since it uses less digits than its factorization.
72830758 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5237 (or 5230 counting only the distinct ones).
The product of its (nonzero) digits is 94080, while the sum is 40.
The square root of 72830758 is about 8534.0938593386. The cubic root of 72830758 is about 417.6106926782.
It can be divided in two parts, 728 and 30758, that multiplied together give a square (22391824 = 47322).
The spelling of 72830758 in words is "seventy-two million, eight hundred thirty thousand, seven hundred fifty-eight".
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