Base | Representation |
---|---|
bin | 10001010011101… |
… | …00111101110100 |
3 | 101010012001001121 |
4 | 20221310331310 |
5 | 244131320310 |
6 | 22223433324 |
7 | 3412013554 |
oct | 1051647564 |
9 | 333161047 |
10 | 145182580 |
11 | 74a51904 |
12 | 40755844 |
13 | 2410326a |
14 | 153d3164 |
15 | cb2c0da |
hex | 8a74f74 |
145182580 has 24 divisors (see below), whose sum is σ = 305683560. Its totient is φ = 57920640.
The previous prime is 145182571. The next prime is 145182593. The reversal of 145182580 is 85281541.
It can be written as a sum of positive squares in 4 ways, for example, as 509796 + 144672784 = 714^2 + 12028^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 17110.
It is an arithmetic number, because the mean of its divisors is an integer number (12736815).
Almost surely, 2145182580 is an apocalyptic number.
145182580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
145182580 is an abundant number, since it is smaller than the sum of its proper divisors (160500980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145182580 is a wasteful number, since it uses less digits than its factorization.
145182580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19059 (or 19057 counting only the distinct ones).
The product of its (nonzero) digits is 12800, while the sum is 34.
The square root of 145182580 is about 12049.1734156331. The cubic root of 145182580 is about 525.5792005265.
The spelling of 145182580 in words is "one hundred forty-five million, one hundred eighty-two thousand, five hundred eighty".
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