Base | Representation |
---|---|
bin | 110100110000001… |
… | …1101000010011100 |
3 | 11120100210011121021 |
4 | 1221200131002130 |
5 | 12111122141403 |
6 | 451351413524 |
7 | 61602505540 |
oct | 15140350234 |
9 | 4510704537 |
10 | 1770115228 |
11 | 829202852 |
12 | 4149842a4 |
13 | 22295867b |
14 | 12b137a20 |
15 | a56038bd |
hex | 6981d09c |
1770115228 has 18 divisors (see below), whose sum is σ = 3540675768. Its totient is φ = 758525400.
The previous prime is 1770115211. The next prime is 1770115241. The reversal of 1770115228 is 8225110771.
It is a junction number, because it is equal to n+sod(n) for n = 1770115193 and 1770115202.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218653 + ... + 226603.
Almost surely, 21770115228 is an apocalyptic number.
It is an amenable number.
1770115228 is an abundant number, since it is smaller than the sum of its proper divisors (1770560540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1770115228 is an frugal number, since it uses more digits than its factorization.
1770115228 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15913 (or 7960 counting only the distinct ones).
The product of its (nonzero) digits is 7840, while the sum is 34.
The square root of 1770115228 is about 42072.7373485491. The cubic root of 1770115228 is about 1209.6707498402.
Adding to 1770115228 its reverse (8225110771), we get a palindrome (9995225999).
The spelling of 1770115228 in words is "one billion, seven hundred seventy million, one hundred fifteen thousand, two hundred twenty-eight".
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