Base | Representation |
---|---|
bin | 100100101010010… |
… | …0000101011101011 |
3 | 10011201200020111211 |
4 | 1021110200223223 |
5 | 10004402113030 |
6 | 322021333551 |
7 | 42324535531 |
oct | 11124405353 |
9 | 3151606454 |
10 | 1230113515 |
11 | 581404544 |
12 | 2a3b672b7 |
13 | 167b09027 |
14 | b952c151 |
15 | 72ed812a |
hex | 49520aeb |
1230113515 has 4 divisors (see below), whose sum is σ = 1476136224. Its totient is φ = 984090808.
The previous prime is 1230113509. The next prime is 1230113527. The reversal of 1230113515 is 5153110321.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1230113515 - 213 = 1230105323 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123011347 + ... + 123011356.
It is an arithmetic number, because the mean of its divisors is an integer number (369034056).
Almost surely, 21230113515 is an apocalyptic number.
1230113515 is a deficient number, since it is larger than the sum of its proper divisors (246022709).
1230113515 is an equidigital number, since it uses as much as digits as its factorization.
1230113515 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 246022708.
The product of its (nonzero) digits is 450, while the sum is 22.
The square root of 1230113515 is about 35072.9741396421. The cubic root of 1230113515 is about 1071.4742292882.
Adding to 1230113515 its reverse (5153110321), we get a palindrome (6383223836).
The spelling of 1230113515 in words is "one billion, two hundred thirty million, one hundred thirteen thousand, five hundred fifteen".
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