Base | Representation |
---|---|
bin | 100100001011111… |
… | …0111010010001110 |
3 | 10010121202112021102 |
4 | 1020113313102032 |
5 | 4441314342220 |
6 | 320252503102 |
7 | 42042442220 |
oct | 11027672216 |
9 | 3117675242 |
10 | 1214215310 |
11 | 573435a30 |
12 | 29a77aa92 |
13 | 1647308c9 |
14 | b7390410 |
15 | 718e7775 |
hex | 485f748e |
1214215310 has 256 divisors, whose sum is σ = 3120353280. Its totient is φ = 328458240.
The previous prime is 1214215307. The next prime is 1214215363. The reversal of 1214215310 is 135124121.
It is a super-2 number, since 2×12142153102 = 2948637638076792200, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11139536 + ... + 11139644.
It is an arithmetic number, because the mean of its divisors is an integer number (12188880).
Almost surely, 21214215310 is an apocalyptic number.
1214215310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1214215310 is an abundant number, since it is smaller than the sum of its proper divisors (1906137970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1214215310 is a wasteful number, since it uses less digits than its factorization.
1214215310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 211.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 1214215310 is about 34845.5924042052. The cubic root of 1214215310 is about 1066.8382251184.
Adding to 1214215310 its reverse (135124121), we get a palindrome (1349339431).
The spelling of 1214215310 in words is "one billion, two hundred fourteen million, two hundred fifteen thousand, three hundred ten".
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