Base | Representation |
---|---|
bin | 1111100011001… |
… | …00001111111010 |
3 | 100002102201212110 |
4 | 13301210033322 |
5 | 231342342132 |
6 | 20535353150 |
7 | 3142446114 |
oct | 761441772 |
9 | 302381773 |
10 | 130434042 |
11 | 67699032 |
12 | 378227b6 |
13 | 2103b20b |
14 | 134743b4 |
15 | b6b71cc |
hex | 7c643fa |
130434042 has 16 divisors (see below), whose sum is σ = 262378080. Its totient is φ = 43226352.
The previous prime is 130434041. The next prime is 130434089. The reversal of 130434042 is 240434031.
It is not an unprimeable number, because it can be changed into a prime (130434041) 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, 61792 + ... + 63867.
It is an arithmetic number, because the mean of its divisors is an integer number (16398630).
Almost surely, 2130434042 is an apocalyptic number.
130434042 is an abundant number, since it is smaller than the sum of its proper divisors (131944038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130434042 is a wasteful number, since it uses less digits than its factorization.
130434042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125837.
The product of its (nonzero) digits is 1152, while the sum is 21.
The square root of 130434042 is about 11420.7723906923. The cubic root of 130434042 is about 507.1428624555.
Adding to 130434042 its reverse (240434031), we get a palindrome (370868073).
The spelling of 130434042 in words is "one hundred thirty million, four hundred thirty-four thousand, forty-two".
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