Base | Representation |
---|---|
bin | 1000100101111… |
… | …01101101111010 |
3 | 12000122001111220 |
4 | 10102331231322 |
5 | 121423032000 |
6 | 11052532510 |
7 | 1533446334 |
oct | 422755572 |
9 | 160561456 |
10 | 72080250 |
11 | 37761a60 |
12 | 20181136 |
13 | 11c19648 |
14 | 9804454 |
15 | 64dc1a0 |
hex | 44bdb7a |
72080250 has 64 divisors (see below), whose sum is σ = 196290432. Its totient is φ = 17472000.
The previous prime is 72080237. The next prime is 72080251. The reversal of 72080250 is 5208027.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 72080250.
It is not an unprimeable number, because it can be changed into a prime (72080251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3882 + ... + 12618.
It is an arithmetic number, because the mean of its divisors is an integer number (3067038).
Almost surely, 272080250 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 72080250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98145216).
72080250 is an abundant number, since it is smaller than the sum of its proper divisors (124210182).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72080250 is a wasteful number, since it uses less digits than its factorization.
72080250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8768 (or 8758 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 24.
The square root of 72080250 is about 8490.0088339177. The cubic root of 72080250 is about 416.1712690060.
Adding to 72080250 its reverse (5208027), we get a palindrome (77288277).
The spelling of 72080250 in words is "seventy-two million, eighty thousand, two hundred fifty".
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