Base | Representation |
---|---|
bin | 10011000001110011… |
… | …101010001111000100 |
3 | 1221201220022101021220 |
4 | 103001303222033010 |
5 | 313320420223322 |
6 | 13215220040340 |
7 | 1322211104166 |
oct | 230163521704 |
9 | 57656271256 |
10 | 20431414212 |
11 | 87350009a0 |
12 | 3b625330b0 |
13 | 1c07b97b11 |
14 | dbb706936 |
15 | 7e8a8755c |
hex | 4c1cea3c4 |
20431414212 has 24 divisors (see below), whose sum is σ = 52007236512. Its totient is φ = 6191337600.
The previous prime is 20431414189. The next prime is 20431414243. The reversal of 20431414212 is 21241413402.
It is a super-3 number, since 3×204314142123 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77391589 + ... + 77391852.
It is an arithmetic number, because the mean of its divisors is an integer number (2166968188).
Almost surely, 220431414212 is an apocalyptic number.
20431414212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20431414212 is an abundant number, since it is smaller than the sum of its proper divisors (31575822300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20431414212 is a wasteful number, since it uses less digits than its factorization.
20431414212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 154783459 (or 154783457 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 24.
Adding to 20431414212 its reverse (21241413402), we get a palindrome (41672827614).
The spelling of 20431414212 in words is "twenty billion, four hundred thirty-one million, four hundred fourteen thousand, two hundred twelve".
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