Base | Representation |
---|---|
bin | 10010111010101100… |
… | …001001111010110111 |
3 | 1221102120121211110122 |
4 | 102322230021322313 |
5 | 313044333200302 |
6 | 13155312442155 |
7 | 1316231130224 |
oct | 227254117267 |
9 | 57376554418 |
10 | 20312006327 |
11 | 8683663a98 |
12 | 3b2a54935b |
13 | 1bb921a572 |
14 | da990294b |
15 | 7dd34c3a2 |
hex | 4bab09eb7 |
20312006327 has 4 divisors (see below), whose sum is σ = 20312321736. Its totient is φ = 20311690920.
The previous prime is 20312006321. The next prime is 20312006329. The reversal of 20312006327 is 72360021302.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72360021302 = 2 ⋅36180010651.
It is a cyclic number.
It is not a de Polignac number, because 20312006327 - 24 = 20312006311 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20312006296 and 20312006305.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20312006321) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22424 + ... + 202797.
It is an arithmetic number, because the mean of its divisors is an integer number (5078080434).
Almost surely, 220312006327 is an apocalyptic number.
20312006327 is a deficient number, since it is larger than the sum of its proper divisors (315409).
20312006327 is an equidigital number, since it uses as much as digits as its factorization.
20312006327 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315408.
The product of its (nonzero) digits is 3024, while the sum is 26.
Adding to 20312006327 its reverse (72360021302), we get a palindrome (92672027629).
The spelling of 20312006327 in words is "twenty billion, three hundred twelve million, six thousand, three hundred twenty-seven".
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