Base | Representation |
---|---|
bin | 1111100001011… |
… | …11011100010111 |
3 | 100002000202011200 |
4 | 13300233130113 |
5 | 231313432001 |
6 | 20531003543 |
7 | 3140555406 |
oct | 760573427 |
9 | 302022150 |
10 | 130217751 |
11 | 67560584 |
12 | 377395b3 |
13 | 20c93931 |
14 | 1341963d |
15 | b673086 |
hex | 7c2f717 |
130217751 has 12 divisors (see below), whose sum is σ = 188407128. Its totient is φ = 86666544.
The previous prime is 130217723. The next prime is 130217771. The reversal of 130217751 is 157712031.
It is a happy number.
It is not a de Polignac number, because 130217751 - 26 = 130217687 is a prime.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130217771) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6285 + ... + 17318.
It is an arithmetic number, because the mean of its divisors is an integer number (15700594).
Almost surely, 2130217751 is an apocalyptic number.
130217751 is a deficient number, since it is larger than the sum of its proper divisors (58189377).
130217751 is a wasteful number, since it uses less digits than its factorization.
130217751 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24222 (or 24219 counting only the distinct ones).
The product of its (nonzero) digits is 1470, while the sum is 27.
The square root of 130217751 is about 11411.2992687073. The cubic root of 130217751 is about 506.8623857687.
Adding to 130217751 its reverse (157712031), we get a palindrome (287929782).
The spelling of 130217751 in words is "one hundred thirty million, two hundred seventeen thousand, seven hundred fifty-one".
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