Base | Representation |
---|---|
bin | 100100100110011… |
… | …0001000011010111 |
3 | 10011120212002201221 |
4 | 1021030301003113 |
5 | 10003342132130 |
6 | 321510031211 |
7 | 42301352056 |
oct | 11114610327 |
9 | 3146762657 |
10 | 1228083415 |
11 | 580248279 |
12 | 2a3348507 |
13 | 167577ca0 |
14 | b916039d |
15 | 72c3687a |
hex | 493310d7 |
1228083415 has 16 divisors (see below), whose sum is σ = 1613084256. Its totient is φ = 892022400.
The previous prime is 1228083377. The next prime is 1228083419. The reversal of 1228083415 is 5143808221.
It is a happy number.
It is not a de Polignac number, because 1228083415 - 27 = 1228083287 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 (1228083419) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150901 + ... + 158830.
It is an arithmetic number, because the mean of its divisors is an integer number (100817766).
Almost surely, 21228083415 is an apocalyptic number.
1228083415 is a deficient number, since it is larger than the sum of its proper divisors (385000841).
1228083415 is a wasteful number, since it uses less digits than its factorization.
1228083415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309810.
The product of its (nonzero) digits is 15360, while the sum is 34.
The square root of 1228083415 is about 35044.0211020368. The cubic root of 1228083415 is about 1070.8844740860.
The spelling of 1228083415 in words is "one billion, two hundred twenty-eight million, eighty-three thousand, four hundred fifteen".
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