Base | Representation |
---|---|
bin | 10010101111011111… |
… | …011101111110001110 |
3 | 1220221111002210021010 |
4 | 102233133131332032 |
5 | 312203234144324 |
6 | 13124521550050 |
7 | 1311460202325 |
oct | 225737357616 |
9 | 56844083233 |
10 | 20124131214 |
11 | 8597602700 |
12 | 3a97645326 |
13 | 1b8931a065 |
14 | d8c9990bc |
15 | 7cbada829 |
hex | 4af7ddf8e |
20124131214 has 24 divisors (see below), whose sum is σ = 44239827240. Its totient is φ = 6098221360.
The previous prime is 20124131207. The next prime is 20124131227. The reversal of 20124131214 is 41213142102.
It is a super-2 number, since 2×201241312142 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13858869 + ... + 13860320.
It is an arithmetic number, because the mean of its divisors is an integer number (1843326135).
Almost surely, 220124131214 is an apocalyptic number.
20124131214 is an abundant number, since it is smaller than the sum of its proper divisors (24115696026).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20124131214 is a wasteful number, since it uses less digits than its factorization.
20124131214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27719216 (or 27719205 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 21.
Adding to 20124131214 its reverse (41213142102), we get a palindrome (61337273316).
The spelling of 20124131214 in words is "twenty billion, one hundred twenty-four million, one hundred thirty-one thousand, two hundred fourteen".
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