Base | Representation |
---|---|
bin | 10010101000111100… |
… | …100000000100000000 |
3 | 1220122211102212010201 |
4 | 102220330200010000 |
5 | 311442130121230 |
6 | 13105555534544 |
7 | 1305654520030 |
oct | 225074400400 |
9 | 56584385121 |
10 | 20014301440 |
11 | 85406079a1 |
12 | 3a668ba454 |
13 | 1b6c644323 |
14 | d7c1698c0 |
15 | 7c21435ca |
hex | 4a8f20100 |
20014301440 has 72 divisors (see below), whose sum is σ = 54789174720. Its totient is φ = 6862043136.
The previous prime is 20014301407. The next prime is 20014301441. The reversal of 20014301440 is 4410341002.
It is not an unprimeable number, because it can be changed into a prime (20014301441) 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, 1107910 + ... + 1125829.
It is an arithmetic number, because the mean of its divisors is an integer number (760960760).
Almost surely, 220014301440 is an apocalyptic number.
20014301440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20014301440 is an abundant number, since it is smaller than the sum of its proper divisors (34774873280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20014301440 is an equidigital number, since it uses as much as digits as its factorization.
20014301440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2233767 (or 2233753 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 20014301440 its reverse (4410341002), we get a palindrome (24424642442).
The spelling of 20014301440 in words is "twenty billion, fourteen million, three hundred one thousand, four hundred forty".
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