Base | Representation |
---|---|
bin | 10010101000101100… |
… | …011010001000110111 |
3 | 1220122112111112100102 |
4 | 102220230122020313 |
5 | 311440040122441 |
6 | 13105325304315 |
7 | 1305603620012 |
oct | 225054321067 |
9 | 56575445312 |
10 | 20010082871 |
11 | 8539196479 |
12 | 3a6540509b |
13 | 1b6b7c812c |
14 | d7b78c379 |
15 | 7c1aad69b |
hex | 4a8b1a237 |
20010082871 has 2 divisors, whose sum is σ = 20010082872. Its totient is φ = 20010082870.
The previous prime is 20010082843. The next prime is 20010082877. The reversal of 20010082871 is 17828001002.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20010082871 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20010082877) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005041435 + 10005041436.
It is an arithmetic number, because the mean of its divisors is an integer number (10005041436).
Almost surely, 220010082871 is an apocalyptic number.
20010082871 is a deficient number, since it is larger than the sum of its proper divisors (1).
20010082871 is an equidigital number, since it uses as much as digits as its factorization.
20010082871 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1792, while the sum is 29.
Adding to 20010082871 its reverse (17828001002), we get a palindrome (37838083873).
The spelling of 20010082871 in words is "twenty billion, ten million, eighty-two thousand, eight hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •