Base | Representation |
---|---|
bin | 1111100010010… |
… | …01010110000010 |
3 | 100002020010200222 |
4 | 13301021112002 |
5 | 231330330332 |
6 | 20533143042 |
7 | 3141506615 |
oct | 761112602 |
9 | 302203628 |
10 | 130323842 |
11 | 67623260 |
12 | 3778aa82 |
13 | 20cccccc |
14 | 1344617c |
15 | b694712 |
hex | 7c49582 |
130323842 has 32 divisors (see below), whose sum is σ = 228576384. Its totient is φ = 55123200.
The previous prime is 130323839. The next prime is 130323847. The reversal of 130323842 is 248323031.
It is a Cunningham number, because it is equal to 5073-1.
It is not an unprimeable number, because it can be changed into a prime (130323847) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15242 + ... + 22202.
It is an arithmetic number, because the mean of its divisors is an integer number (7143012).
Almost surely, 2130323842 is an apocalyptic number.
130323842 is a deficient number, since it is larger than the sum of its proper divisors (98252542).
130323842 is a wasteful number, since it uses less digits than its factorization.
130323842 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7034.
The product of its (nonzero) digits is 3456, while the sum is 26.
The square root of 130323842 is about 11415.9468288881. The cubic root of 130323842 is about 506.9999987032. Note that the first 5 decimals are identical.
Adding to 130323842 its reverse (248323031), we get a palindrome (378646873).
The spelling of 130323842 in words is "one hundred thirty million, three hundred twenty-three thousand, eight hundred forty-two".
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