Base | Representation |
---|---|
bin | 100101010111111100… |
… | …010101100000110100 |
3 | 10211120201221100022100 |
4 | 211113330111200310 |
5 | 1124141303441322 |
6 | 30234024102100 |
7 | 2620314364221 |
oct | 452774254064 |
9 | 124521840270 |
10 | 40130140212 |
11 | 16023466338 |
12 | 793b604930 |
13 | 3a27019ac6 |
14 | 1d299a6948 |
15 | 109d141dac |
hex | 957f15834 |
40130140212 has 144 divisors (see below), whose sum is σ = 107347968000. Its totient is φ = 12622962240.
The previous prime is 40130140207. The next prime is 40130140213. The reversal of 40130140212 is 21204103104.
40130140212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×401301402122 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40130140213) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8359789 + ... + 8364587.
It is an arithmetic number, because the mean of its divisors is an integer number (745472000).
Almost surely, 240130140212 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 40130140212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53673984000).
40130140212 is an abundant number, since it is smaller than the sum of its proper divisors (67217827788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40130140212 is a wasteful number, since it uses less digits than its factorization.
40130140212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5026 (or 5021 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 40130140212 its reverse (21204103104), we get a palindrome (61334243316).
The spelling of 40130140212 in words is "forty billion, one hundred thirty million, one hundred forty thousand, two hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •