Base | Representation |
---|---|
bin | 100100001010011… |
… | …0011001010100001 |
3 | 10010120020201100020 |
4 | 1020110303022201 |
5 | 4441113141001 |
6 | 320223344053 |
7 | 42032555214 |
oct | 11024631241 |
9 | 3116221306 |
10 | 1213412001 |
11 | 572a3743a |
12 | 29a452029 |
13 | 16450c089 |
14 | b722177b |
15 | 717d9736 |
hex | 485332a1 |
1213412001 has 8 divisors (see below), whose sum is σ = 1618099680. Its totient is φ = 808832832.
The previous prime is 1213411999. The next prime is 1213412063. The reversal of 1213412001 is 1002143121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1213412001 - 21 = 1213411999 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1213412801) 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, 4105 + ... + 49433.
It is an arithmetic number, because the mean of its divisors is an integer number (202262460).
Almost surely, 21213412001 is an apocalyptic number.
It is an amenable number.
1213412001 is a deficient number, since it is larger than the sum of its proper divisors (404687679).
1213412001 is an equidigital number, since it uses as much as digits as its factorization.
1213412001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54255.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 1213412001 is about 34834.0638025482. The cubic root of 1213412001 is about 1066.6029044676.
Adding to 1213412001 its reverse (1002143121), we get a palindrome (2215555122).
The spelling of 1213412001 in words is "one billion, two hundred thirteen million, four hundred twelve thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •