Base | Representation |
---|---|
bin | 111101011001111… |
… | …001101011010100 |
3 | 2122210111120202022 |
4 | 331121321223110 |
5 | 4102212400040 |
6 | 250120432312 |
7 | 34346361413 |
oct | 7531715324 |
9 | 2583446668 |
10 | 1030200020 |
11 | 489580583 |
12 | 249018698 |
13 | 135582215 |
14 | 9ab6d47a |
15 | 606996b5 |
hex | 3d679ad4 |
1030200020 has 24 divisors (see below), whose sum is σ = 2213733984. Its totient is φ = 402496416.
The previous prime is 1030200001. The next prime is 1030200023. The reversal of 1030200020 is 200020301.
It is a super-2 number, since 2×10302000202 = 2122624162416000800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1030199980 and 1030200007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030200023) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598094 + ... + 599813.
It is an arithmetic number, because the mean of its divisors is an integer number (92238916).
Almost surely, 21030200020 is an apocalyptic number.
1030200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1030200020 is an abundant number, since it is smaller than the sum of its proper divisors (1183533964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1030200020 is a wasteful number, since it uses less digits than its factorization.
1030200020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1197959 (or 1197957 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 8.
The square root of 1030200020 is about 32096.7291168430. The cubic root of 1030200020 is about 1009.9670021569.
Adding to 1030200020 its reverse (200020301), we get a palindrome (1230220321).
The spelling of 1030200020 in words is "one billion, thirty million, two hundred thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •