Base | Representation |
---|---|
bin | 10011010111110111… |
… | …010011011001100010 |
3 | 1222200200122001122211 |
4 | 103113313103121202 |
5 | 320100133434002 |
6 | 13320035352334 |
7 | 1334323363210 |
oct | 232767233142 |
9 | 58620561584 |
10 | 20801468002 |
11 | 8904982877 |
12 | 40464526aa |
13 | 1c66752a63 |
14 | 1014913cb0 |
15 | 81b2d2dd7 |
hex | 4d7dd3662 |
20801468002 has 16 divisors (see below), whose sum is σ = 35688240000. Its totient is φ = 8907769728.
The previous prime is 20801467993. The next prime is 20801468003. The reversal of 20801468002 is 20086410802.
It is not an unprimeable number, because it can be changed into a prime (20801468003) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577318 + ... + 612289.
It is an arithmetic number, because the mean of its divisors is an integer number (2230515000).
Almost surely, 220801468002 is an apocalyptic number.
20801468002 is a deficient number, since it is larger than the sum of its proper divisors (14886771998).
20801468002 is a wasteful number, since it uses less digits than its factorization.
20801468002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1190865.
The product of its (nonzero) digits is 6144, while the sum is 31.
Adding to 20801468002 its reverse (20086410802), we get a palindrome (40887878804).
The spelling of 20801468002 in words is "twenty billion, eight hundred one million, four hundred sixty-eight thousand, two".
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