Base | Representation |
---|---|
bin | 100100010111011… |
… | …0111001000100111 |
3 | 10011001002211002111 |
4 | 1020232313020213 |
5 | 4444340302012 |
6 | 321030021451 |
7 | 42144621463 |
oct | 11056671047 |
9 | 3131084074 |
10 | 1220244007 |
11 | 576883424 |
12 | 2a07a7887 |
13 | 165a61998 |
14 | b80bd4a3 |
15 | 721d8ba7 |
hex | 48bb7227 |
1220244007 has 2 divisors, whose sum is σ = 1220244008. Its totient is φ = 1220244006.
The previous prime is 1220243977. The next prime is 1220244013. The reversal of 1220244007 is 7004420221.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1220244007 - 223 = 1211855399 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1220244097) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610122003 + 610122004.
It is an arithmetic number, because the mean of its divisors is an integer number (610122004).
Almost surely, 21220244007 is an apocalyptic number.
1220244007 is a deficient number, since it is larger than the sum of its proper divisors (1).
1220244007 is an equidigital number, since it uses as much as digits as its factorization.
1220244007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 896, while the sum is 22.
The square root of 1220244007 is about 34931.9911685549. The cubic root of 1220244007 is about 1068.6009627591.
Adding to 1220244007 its reverse (7004420221), we get a palindrome (8224664228).
The spelling of 1220244007 in words is "one billion, two hundred twenty million, two hundred forty-four thousand, seven".
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