Base | Representation |
---|---|
bin | 10001010100000… |
… | …00100100110010 |
3 | 101010021110021201 |
4 | 20222000210302 |
5 | 244134331010 |
6 | 22224441414 |
7 | 3412302313 |
oct | 1052004462 |
9 | 333243251 |
10 | 145230130 |
11 | 74a84601 |
12 | 4077926a |
13 | 2411bab6 |
14 | 1540660a |
15 | cb3b23a |
hex | 8a80932 |
145230130 has 8 divisors (see below), whose sum is σ = 261414252. Its totient is φ = 58092048.
The previous prime is 145230109. The next prime is 145230131. The reversal of 145230130 is 31032541.
It can be written as a sum of positive squares in 2 ways, for example, as 144216081 + 1014049 = 12009^2 + 1007^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 145230098 and 145230107.
It is not an unprimeable number, because it can be changed into a prime (145230131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7261497 + ... + 7261516.
Almost surely, 2145230130 is an apocalyptic number.
145230130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145230130 is a deficient number, since it is larger than the sum of its proper divisors (116184122).
145230130 is a wasteful number, since it uses less digits than its factorization.
145230130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14523020.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 145230130 is about 12051.1464184948. The cubic root of 145230130 is about 525.6365732570.
Adding to 145230130 its reverse (31032541), we get a palindrome (176262671).
The spelling of 145230130 in words is "one hundred forty-five million, two hundred thirty thousand, one hundred thirty".
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