Base | Representation |
---|---|
bin | 11101010001011… |
… | …00011101010000 |
3 | 122010001011201222 |
4 | 32220230131100 |
5 | 1000330031010 |
6 | 40210544212 |
7 | 6041062643 |
oct | 1650543520 |
9 | 563034658 |
10 | 245548880 |
11 | 116673565 |
12 | 6a298068 |
13 | 3bb446c5 |
14 | 2487ba5a |
15 | 16855355 |
hex | ea2c750 |
245548880 has 20 divisors (see below), whose sum is σ = 570901332. Its totient is φ = 98219520.
The previous prime is 245548879. The next prime is 245548883. The reversal of 245548880 is 88845542.
245548880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 177848896 + 67699984 = 13336^2 + 8228^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (245548883) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 1534601 + ... + 1534760.
Almost surely, 2245548880 is an apocalyptic number.
245548880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
245548880 is an abundant number, since it is smaller than the sum of its proper divisors (325352452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
245548880 is a wasteful number, since it uses less digits than its factorization.
245548880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3069374 (or 3069368 counting only the distinct ones).
The product of its (nonzero) digits is 409600, while the sum is 44.
The square root of 245548880 is about 15669.9993618379. Note that the first 3 decimals coincide. The cubic root of 245548880 is about 626.1994077347.
The spelling of 245548880 in words is "two hundred forty-five million, five hundred forty-eight thousand, eight hundred eighty".
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