Base | Representation |
---|---|
bin | 1001100011100… |
… | …00011011100010 |
3 | 12120211011021100 |
4 | 10301300123202 |
5 | 131004333130 |
6 | 11541535230 |
7 | 1662166101 |
oct | 461603342 |
9 | 176734240 |
10 | 80152290 |
11 | 41275669 |
12 | 22a14516 |
13 | 137b47ba |
14 | a906038 |
15 | 7083c60 |
hex | 4c706e2 |
80152290 has 48 divisors (see below), whose sum is σ = 209359800. Its totient is φ = 21275136.
The previous prime is 80152277. The next prime is 80152327. The reversal of 80152290 is 9225108.
It can be written as a sum of positive squares in 4 ways, for example, as 79548561 + 603729 = 8919^2 + 777^2 .
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, 18666 + ... + 22554.
Almost surely, 280152290 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80152290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104679900).
80152290 is an abundant number, since it is smaller than the sum of its proper divisors (129207510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80152290 is a wasteful number, since it uses less digits than its factorization.
80152290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4131 (or 4128 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 80152290 is about 8952.7811321399. The cubic root of 80152290 is about 431.1601804117.
Adding to 80152290 its reverse (9225108), we get a palindrome (89377398).
The spelling of 80152290 in words is "eighty million, one hundred fifty-two thousand, two hundred ninety".
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