Base | Representation |
---|---|
bin | 1111100001101… |
… | …01100110000011 |
3 | 100002002000201212 |
4 | 13300311212003 |
5 | 231320233242 |
6 | 20531320335 |
7 | 3141022022 |
oct | 760654603 |
9 | 302060655 |
10 | 130242947 |
11 | 675784aa |
12 | 377500ab |
13 | 20ca2243 |
14 | 134248b9 |
15 | b67a782 |
hex | 7c35983 |
130242947 has 2 divisors, whose sum is σ = 130242948. Its totient is φ = 130242946.
The previous prime is 130242943. The next prime is 130242949. The reversal of 130242947 is 749242031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130242947 - 22 = 130242943 is a prime.
Together with 130242949, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130242941) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65121473 + 65121474.
It is an arithmetic number, because the mean of its divisors is an integer number (65121474).
Almost surely, 2130242947 is an apocalyptic number.
130242947 is a deficient number, since it is larger than the sum of its proper divisors (1).
130242947 is an equidigital number, since it uses as much as digits as its factorization.
130242947 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 32.
The square root of 130242947 is about 11412.4032087900. The cubic root of 130242947 is about 506.8950748120.
Adding to 130242947 its reverse (749242031), we get a palindrome (879484978).
The spelling of 130242947 in words is "one hundred thirty million, two hundred forty-two thousand, nine hundred forty-seven".
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