Base | Representation |
---|---|
bin | 10010101001010101… |
… | …010010111100001101 |
3 | 1220200021200002021000 |
4 | 102221111102330031 |
5 | 312000311120133 |
6 | 13110351130513 |
7 | 1306064001033 |
oct | 225125227415 |
9 | 56607602230 |
10 | 20020801293 |
11 | 8544247379 |
12 | 3a68b13a39 |
13 | 1b70aab9ac |
14 | d7cd7c553 |
15 | 7c29c9413 |
hex | 4a9552f0d |
20020801293 has 32 divisors (see below), whose sum is σ = 29762986880. Its totient is φ = 13301159040.
The previous prime is 20020801279. The next prime is 20020801309. The reversal of 20020801293 is 39210802002.
It is a happy number.
It is not a de Polignac number, because 20020801293 - 29 = 20020800781 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020801193) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17096598 + ... + 17097768.
It is an arithmetic number, because the mean of its divisors is an integer number (930093340).
Almost surely, 220020801293 is an apocalyptic number.
It is an amenable number.
20020801293 is a deficient number, since it is larger than the sum of its proper divisors (9742185587).
20020801293 is a wasteful number, since it uses less digits than its factorization.
20020801293 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2826 (or 2820 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The spelling of 20020801293 in words is "twenty billion, twenty million, eight hundred one thousand, two hundred ninety-three".
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