Base | Representation |
---|---|
bin | 111111011111101… |
… | …1001111010000001 |
3 | 12111111000011201010 |
4 | 1332333121322001 |
5 | 13330410103101 |
6 | 551225031133 |
7 | 103540244130 |
oct | 17677317201 |
9 | 5444004633 |
10 | 2130550401 |
11 | 9a3705061 |
12 | 4b56254a9 |
13 | 27c526515 |
14 | 162d5d917 |
15 | c709e2d6 |
hex | 7efd9e81 |
2130550401 has 8 divisors (see below), whose sum is σ = 3246553024. Its totient is φ = 1217457360.
The previous prime is 2130550399. The next prime is 2130550417. The reversal of 2130550401 is 1040550312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2130550401 - 21 = 2130550399 is a prime.
It is a super-2 number, since 2×21305504012 = 9078490022402521602, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 101454781 = 2130550401 / (2 + 1 + 3 + 0 + 5 + 5 + 0 + 4 + 0 + 1).
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2130550481) 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, 50727370 + ... + 50727411.
It is an arithmetic number, because the mean of its divisors is an integer number (405819128).
Almost surely, 22130550401 is an apocalyptic number.
2130550401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2130550401 is a deficient number, since it is larger than the sum of its proper divisors (1116002623).
2130550401 is a wasteful number, since it uses less digits than its factorization.
2130550401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101454791.
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 2130550401 is about 46157.8855776562. The cubic root of 2130550401 is about 1286.7591668027.
The spelling of 2130550401 in words is "two billion, one hundred thirty million, five hundred fifty thousand, four hundred one".
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