| Base | Representation |
|---|---|
| bin | 100110001011… |
| … | …1101100100000 |
| 3 | 1101200010021111 |
| 4 | 1030113230200 |
| 5 | 20111120000 |
| 6 | 1553033104 |
| 7 | 332111230 |
| oct | 114275440 |
| 9 | 41603244 |
| 10 | 20020000 |
| 11 | 10334360 |
| 12 | 6855794 |
| 13 | 41bc570 |
| 14 | 2931cc0 |
| 15 | 1b56cba |
| hex | 1317b20 |
20020000 has 240 divisors, whose sum is σ = 66128832. Its totient is φ = 5760000.
The previous prime is 20019973. The next prime is 20020001. The reversal of 20020000 is 2002.
It is a Harshad number since it is a multiple of its sum of digits (4).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is not an unprimeable number, because it can be changed into a prime (20020001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1539994 + ... + 1540006.
Almost surely, 220020000 is an apocalyptic number.
20020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33064416).
20020000 is an abundant number, since it is smaller than the sum of its proper divisors (46108832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20020000 is a wasteful number, since it uses less digits than its factorization.
20020000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61 (or 38 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 4.
The square root of 20020000 is about 4474.3714642394. The cubic root of 20020000 is about 271.5322121033.
Adding to 20020000 its reverse (2002), we get a palindrome (20022002).
Multiplying 20020000 by its reverse (2002), we get a square (40080040000 = 2002002).
20020000 divided by its reverse (2002) gives a 4-th power (10000 = 104).
It can be divided in two parts, 200 and 20000, that multiplied together give a square (4000000 = 20002).
The spelling of 20020000 in words is "twenty million, twenty thousand".
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