Base | Representation |
---|---|
bin | 100101000000111… |
… | …1011100101110110 |
3 | 10012120002011102200 |
4 | 1022001323211312 |
5 | 10020424121324 |
6 | 323124445330 |
7 | 42530666121 |
oct | 11201734566 |
9 | 3176064380 |
10 | 1242020214 |
11 | 5880a7196 |
12 | 2a7b49846 |
13 | 16a417706 |
14 | bad4b3b8 |
15 | 7408aec9 |
hex | 4a07b976 |
1242020214 has 24 divisors (see below), whose sum is σ = 2748301920. Its totient is φ = 405197808.
The previous prime is 1242020203. The next prime is 1242020233. The reversal of 1242020214 is 4120202421.
1242020214 is a `hidden beast` number, since 12 + 420 + 20 + 214 = 666.
It is a super-2 number, since 2×12420202142 = 3085228423969211592, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 733209 + ... + 734900.
It is an arithmetic number, because the mean of its divisors is an integer number (114512580).
Almost surely, 21242020214 is an apocalyptic number.
1242020214 is an abundant number, since it is smaller than the sum of its proper divisors (1506281706).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1242020214 is a wasteful number, since it uses less digits than its factorization.
1242020214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1468164 (or 1468161 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
The square root of 1242020214 is about 35242.3071605705. The cubic root of 1242020214 is about 1074.9201928134.
Adding to 1242020214 its reverse (4120202421), we get a palindrome (5362222635).
The spelling of 1242020214 in words is "one billion, two hundred forty-two million, twenty thousand, two hundred fourteen".
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