Base | Representation |
---|---|
bin | 101011000100100… |
… | …0111011100001001 |
3 | 10201201110022022211 |
4 | 1112021013130021 |
5 | 10424434332340 |
6 | 355224145121 |
7 | 50546153356 |
oct | 12611073411 |
9 | 3651408284 |
10 | 1445230345 |
11 | 681881a49 |
12 | 3440081a1 |
13 | 1a0556bb0 |
14 | d9d2762d |
15 | 86d2b5ea |
hex | 56247709 |
1445230345 has 32 divisors (see below), whose sum is σ = 1991001600. Its totient is φ = 998210304.
The previous prime is 1445230321. The next prime is 1445230349. The reversal of 1445230345 is 5430325441.
It is not a de Polignac number, because 1445230345 - 25 = 1445230313 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1445230349) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90159 + ... + 104971.
It is an arithmetic number, because the mean of its divisors is an integer number (62218800).
Almost surely, 21445230345 is an apocalyptic number.
It is an amenable number.
1445230345 is a deficient number, since it is larger than the sum of its proper divisors (545771255).
1445230345 is a wasteful number, since it uses less digits than its factorization.
1445230345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14929.
The product of its (nonzero) digits is 28800, while the sum is 31.
The square root of 1445230345 is about 38016.1853031048. The cubic root of 1445230345 is about 1130.6087890878.
Adding to 1445230345 its reverse (5430325441), we get a palindrome (6875555786).
The spelling of 1445230345 in words is "one billion, four hundred forty-five million, two hundred thirty thousand, three hundred forty-five".
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