Base | Representation |
---|---|
bin | 1000001000000001010000 |
3 | 11000012210220 |
4 | 20020001100 |
5 | 1021130000 |
6 | 113353040 |
7 | 24050625 |
oct | 10100120 |
9 | 4005726 |
10 | 2130000 |
11 | 1225334 |
12 | 868780 |
13 | 597672 |
14 | 3d634c |
15 | 2c11a0 |
hex | 208050 |
2130000 has 100 divisors (see below), whose sum is σ = 6972768. Its totient is φ = 560000.
The previous prime is 2129983. The next prime is 2130001. The reversal of 2130000 is 312.
It is a tau number, because it is divible by the number of its divisors (100).
It is a Harshad number since it is a multiple of its sum of digits (6).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2130001) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29965 + ... + 30035.
22130000 is an apocalyptic number.
2130000 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 2130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3486384).
2130000 is an abundant number, since it is smaller than the sum of its proper divisors (4842768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130000 is an equidigital number, since it uses as much as digits as its factorization.
2130000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102 (or 81 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 6.
The square root of 2130000 is about 1459.4519519326. The cubic root of 2130000 is about 128.6648351224.
Adding to 2130000 its reverse (312), we get a palindrome (2130312).
The spelling of 2130000 in words is "two million, one hundred thirty thousand".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •