Base | Representation |
---|---|
bin | 10001010111101… |
… | …01111000100001 |
3 | 101011011212101211 |
4 | 20223311320201 |
5 | 244300220000 |
6 | 22243030121 |
7 | 3416343214 |
oct | 1053657041 |
9 | 334155354 |
10 | 145710625 |
11 | 75282605 |
12 | 4096b341 |
13 | 24259708 |
14 | 154cd77b |
15 | cbd37ba |
hex | 8af5e21 |
145710625 has 20 divisors (see below), whose sum is σ = 187030756. Its totient is φ = 113400000.
The previous prime is 145710623. The next prime is 145710637. The reversal of 145710625 is 526017541.
145710625 is digitally balanced in base 2, 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 10 ways, for example, as 72454144 + 73256481 = 8512^2 + 8559^2 .
It is not a de Polignac number, because 145710625 - 21 = 145710623 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145710623) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19975 + ... + 26275.
Almost surely, 2145710625 is an apocalyptic number.
It is an amenable number.
145710625 is a deficient number, since it is larger than the sum of its proper divisors (41320131).
145710625 is an frugal number, since it uses more digits than its factorization.
145710625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6358 (or 6343 counting only the distinct ones).
The product of its (nonzero) digits is 8400, while the sum is 31.
The square root of 145710625 is about 12071.0656116186. The cubic root of 145710625 is about 526.2156260048.
The spelling of 145710625 in words is "one hundred forty-five million, seven hundred ten thousand, six hundred twenty-five".
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