Base | Representation |
---|---|
bin | 10011001011011001… |
… | …100011011011001011 |
3 | 1222011010010101201102 |
4 | 103023121203123023 |
5 | 314133114431411 |
6 | 13243205212015 |
7 | 1326204011432 |
oct | 231331433313 |
9 | 58133111642 |
10 | 20592342731 |
11 | 8807927974 |
12 | 3ba840100b |
13 | 1c323220ac |
14 | dd4c38119 |
15 | 807c74d3b |
hex | 4cb6636cb |
20592342731 has 2 divisors, whose sum is σ = 20592342732. Its totient is φ = 20592342730.
The previous prime is 20592342677. The next prime is 20592342761. The reversal of 20592342731 is 13724329502.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20592342731 is a prime.
It is a super-2 number, since 2×205923427312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (20592342761) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10296171365 + 10296171366.
It is an arithmetic number, because the mean of its divisors is an integer number (10296171366).
Almost surely, 220592342731 is an apocalyptic number.
20592342731 is a deficient number, since it is larger than the sum of its proper divisors (1).
20592342731 is an equidigital number, since it uses as much as digits as its factorization.
20592342731 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 90720, while the sum is 38.
The spelling of 20592342731 in words is "twenty billion, five hundred ninety-two million, three hundred forty-two thousand, seven hundred thirty-one".
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