Base | Representation |
---|---|
bin | 10010111010101100… |
… | …001000101100010111 |
3 | 1221102120121120120120 |
4 | 102322230020230113 |
5 | 313044333020203 |
6 | 13155312403023 |
7 | 1316231106456 |
oct | 227254105427 |
9 | 57376546516 |
10 | 20312001303 |
11 | 8683660240 |
12 | 3b2a546473 |
13 | 1bb92181a9 |
14 | da9900b9d |
15 | 7dd34ab53 |
hex | 4bab08b17 |
20312001303 has 8 divisors (see below), whose sum is σ = 29544729216. Its totient is φ = 12310303800.
The previous prime is 20312001301. The next prime is 20312001313. The reversal of 20312001303 is 30310021302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20312001303 - 21 = 20312001301 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20312001301) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307757563 + ... + 307757628.
It is an arithmetic number, because the mean of its divisors is an integer number (3693091152).
Almost surely, 220312001303 is an apocalyptic number.
20312001303 is a deficient number, since it is larger than the sum of its proper divisors (9232727913).
20312001303 is a wasteful number, since it uses less digits than its factorization.
20312001303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 615515205.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 20312001303 its reverse (30310021302), we get a palindrome (50622022605).
The spelling of 20312001303 in words is "twenty billion, three hundred twelve million, one thousand, three hundred three".
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