Base | Representation |
---|---|
bin | 10010101001010010… |
… | …010010010001001011 |
3 | 1220200020011222200220 |
4 | 102221102102101023 |
5 | 312000110341412 |
6 | 13110322201123 |
7 | 1306054203144 |
oct | 225122222113 |
9 | 56606158626 |
10 | 20020012107 |
11 | 8543858457 |
12 | 3a687b31a3 |
13 | 1b70893714 |
14 | d7cc14acb |
15 | 7c28c068c |
hex | 4a949244b |
20020012107 has 16 divisors (see below), whose sum is σ = 29492398080. Its totient is φ = 12015420032.
The previous prime is 20020012063. The next prime is 20020012109. The reversal of 20020012107 is 70121002002.
It is a cyclic number.
It is not a de Polignac number, because 20020012107 - 26 = 20020012043 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20020012109) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8532507 + ... + 8534852.
It is an arithmetic number, because the mean of its divisors is an integer number (1843274880).
Almost surely, 220020012107 is an apocalyptic number.
20020012107 is a deficient number, since it is larger than the sum of its proper divisors (9472385973).
20020012107 is a wasteful number, since it uses less digits than its factorization.
20020012107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17067402.
The product of its (nonzero) digits is 56, while the sum is 15.
Adding to 20020012107 its reverse (70121002002), we get a palindrome (90141014109).
The spelling of 20020012107 in words is "twenty billion, twenty million, twelve thousand, one hundred seven".
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