Base | Representation |
---|---|
bin | 11101010010000… |
… | …10000000000000 |
3 | 122010012122210010 |
4 | 32221002000000 |
5 | 1000340341440 |
6 | 40212504520 |
7 | 6041611131 |
oct | 1651020000 |
9 | 563178703 |
10 | 245637120 |
11 | 116723893 |
12 | 6a31b140 |
13 | 3bb75911 |
14 | 248a1c88 |
15 | 16871580 |
hex | ea42000 |
245637120 has 112 divisors (see below), whose sum is σ = 786384000. Its totient is φ = 65470464.
The previous prime is 245637107. The next prime is 245637121. The reversal of 245637120 is 21736542.
245637120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a nialpdrome in base 16.
It is not an unprimeable number, because it can be changed into a prime (245637121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121881 + ... + 123879.
Almost surely, 2245637120 is an apocalyptic number.
245637120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 245637120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393192000).
245637120 is an abundant number, since it is smaller than the sum of its proper divisors (540746880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
245637120 is an equidigital number, since it uses as much as digits as its factorization.
245637120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2033 (or 2009 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 30.
The square root of 245637120 is about 15672.8146802034. The cubic root of 245637120 is about 626.2744087123.
The spelling of 245637120 in words is "two hundred forty-five million, six hundred thirty-seven thousand, one hundred twenty".
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