Base | Representation |
---|---|
bin | 100100001010000… |
… | …0110110000011000 |
3 | 10010112220110211022 |
4 | 1020110012300120 |
5 | 4441041330404 |
6 | 320215422012 |
7 | 42031200002 |
oct | 11024066030 |
9 | 3115813738 |
10 | 1213230104 |
11 | 572922809 |
12 | 29a384908 |
13 | 164477348 |
14 | b71b5372 |
15 | 717a08be |
hex | 48506c18 |
1213230104 has 32 divisors (see below), whose sum is σ = 2430292800. Its totient is φ = 566105760.
The previous prime is 1213230103. The next prime is 1213230113. The reversal of 1213230104 is 4010323121.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213230101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49382 + ... + 69749.
It is an arithmetic number, because the mean of its divisors is an integer number (75946650).
Almost surely, 21213230104 is an apocalyptic number.
It is an amenable number.
1213230104 is an abundant number, since it is smaller than the sum of its proper divisors (1217062696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213230104 is a wasteful number, since it uses less digits than its factorization.
1213230104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 119223 (or 119219 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1213230104 is about 34831.4527977229. The cubic root of 1213230104 is about 1066.5496052959.
Adding to 1213230104 its reverse (4010323121), we get a palindrome (5223553225).
The spelling of 1213230104 in words is "one billion, two hundred thirteen million, two hundred thirty thousand, one hundred four".
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