Base | Representation |
---|---|
bin | 100100001011111… |
… | …1101101101110111 |
3 | 10010121210212102011 |
4 | 1020113331231313 |
5 | 4441321213110 |
6 | 320253225051 |
7 | 42042612064 |
oct | 11027755567 |
9 | 3117725364 |
10 | 1214241655 |
11 | 573453800 |
12 | 29a792187 |
13 | 16473c8b3 |
14 | b7399c6b |
15 | 7190048a |
hex | 485fdb77 |
1214241655 has 12 divisors (see below), whose sum is σ = 1601595576. Its totient is φ = 883084400.
The previous prime is 1214241649. The next prime is 1214241689. The reversal of 1214241655 is 5561424121.
It is a happy number.
It is not a de Polignac number, because 1214241655 - 23 = 1214241647 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002901 + ... + 1004110.
It is an arithmetic number, because the mean of its divisors is an integer number (133466298).
Almost surely, 21214241655 is an apocalyptic number.
1214241655 is a deficient number, since it is larger than the sum of its proper divisors (387353921).
1214241655 is a wasteful number, since it uses less digits than its factorization.
1214241655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2007038 (or 2007027 counting only the distinct ones).
The product of its digits is 9600, while the sum is 31.
The square root of 1214241655 is about 34845.9704270092. The cubic root of 1214241655 is about 1066.8459408422.
Adding to 1214241655 its reverse (5561424121), we get a palindrome (6775665776).
The spelling of 1214241655 in words is "one billion, two hundred fourteen million, two hundred forty-one thousand, six hundred fifty-five".
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