Base | Representation |
---|---|
bin | 100111100001110111… |
… | …110101001101011010 |
3 | 11001120000021112022210 |
4 | 213201313311031122 |
5 | 1143411204341010 |
6 | 31255410455550 |
7 | 3031543606302 |
oct | 474167651532 |
9 | 131500245283 |
10 | 42444215130 |
11 | 17000720049 |
12 | 82865945b6 |
13 | 400557c4c5 |
14 | 20a905a602 |
15 | 1186393b20 |
hex | 9e1df535a |
42444215130 has 64 divisors (see below), whose sum is σ = 105367412736. Its totient is φ = 10930920000.
The previous prime is 42444215117. The next prime is 42444215147. The reversal of 42444215130 is 3151244424.
It is a super-2 number, since 2×424442151302 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410155 + ... + 503105.
It is an arithmetic number, because the mean of its divisors is an integer number (1646365824).
Almost surely, 242444215130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 42444215130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52683706368).
42444215130 is an abundant number, since it is smaller than the sum of its proper divisors (62923197606).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42444215130 is a wasteful number, since it uses less digits than its factorization.
42444215130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93483.
The product of its (nonzero) digits is 15360, while the sum is 30.
Adding to 42444215130 its reverse (3151244424), we get a palindrome (45595459554).
The spelling of 42444215130 in words is "forty-two billion, four hundred forty-four million, two hundred fifteen thousand, one hundred thirty".
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