Base | Representation |
---|---|
bin | 100100101010101… |
… | …1011010000100101 |
3 | 10011202010102122010 |
4 | 1021111123100211 |
5 | 10004432302240 |
6 | 322030424433 |
7 | 42326555166 |
oct | 11125332045 |
9 | 3152112563 |
10 | 1230353445 |
11 | 581558832 |
12 | 2a4062119 |
13 | 167b912b9 |
14 | b959176d |
15 | 73034280 |
hex | 4955b425 |
1230353445 has 8 divisors (see below), whose sum is σ = 1968565536. Its totient is φ = 656188496.
The previous prime is 1230353407. The next prime is 1230353447. The reversal of 1230353445 is 5443530321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1230353445 - 26 = 1230353381 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230353447) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41011767 + ... + 41011796.
It is an arithmetic number, because the mean of its divisors is an integer number (246070692).
Almost surely, 21230353445 is an apocalyptic number.
1230353445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1230353445 is a deficient number, since it is larger than the sum of its proper divisors (738212091).
1230353445 is an equidigital number, since it uses as much as digits as its factorization.
1230353445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82023571.
The product of its (nonzero) digits is 21600, while the sum is 30.
The square root of 1230353445 is about 35076.3944127671. The cubic root of 1230353445 is about 1071.5438873851.
Adding to 1230353445 its reverse (5443530321), we get a palindrome (6673883766).
The spelling of 1230353445 in words is "one billion, two hundred thirty million, three hundred fifty-three thousand, four hundred forty-five".
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