Base | Representation |
---|---|
bin | 1011110100101111… |
… | …0011101001111101 |
3 | 22012012102100100202 |
4 | 2331023303221331 |
5 | 23000020121424 |
6 | 1242541333245 |
7 | 141440314133 |
oct | 27513635175 |
9 | 8165370322 |
10 | 3173988989 |
11 | 13896a79a6 |
12 | 746b67225 |
13 | 3b77623c2 |
14 | 221777753 |
15 | 1389b12ae |
hex | bd2f3a7d |
3173988989 has 2 divisors, whose sum is σ = 3173988990. Its totient is φ = 3173988988.
The previous prime is 3173988949. The next prime is 3173988997. The reversal of 3173988989 is 9898893713.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2331248089 + 842740900 = 48283^2 + 29030^2 .
It is an emirp because it is prime and its reverse (9898893713) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3173988989 - 216 = 3173923453 is a prime.
It is a super-2 number, since 2×31739889892 = 20148412204586484242, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3173988919) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586994494 + 1586994495.
It is an arithmetic number, because the mean of its divisors is an integer number (1586994495).
Almost surely, 23173988989 is an apocalyptic number.
It is an amenable number.
3173988989 is a deficient number, since it is larger than the sum of its proper divisors (1).
3173988989 is an equidigital number, since it uses as much as digits as its factorization.
3173988989 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 23514624, while the sum is 65.
The square root of 3173988989 is about 56338.1663617126. The cubic root of 3173988989 is about 1469.6090078025.
The spelling of 3173988989 in words is "three billion, one hundred seventy-three million, nine hundred eighty-eight thousand, nine hundred eighty-nine".
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