Base | Representation |
---|---|
bin | 1111100001101… |
… | …10010001111101 |
3 | 100002002011120221 |
4 | 13300312101331 |
5 | 231320331012 |
6 | 20531341341 |
7 | 3141033145 |
oct | 760662175 |
9 | 302064527 |
10 | 130245757 |
11 | 6757a624 |
12 | 37751851 |
13 | 20ca35c5 |
14 | 13425925 |
15 | b67b507 |
hex | 7c3647d |
130245757 has 8 divisors (see below), whose sum is σ = 140595840. Its totient is φ = 120286320.
The previous prime is 130245749. The next prime is 130245761. The reversal of 130245757 is 757542031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130245757 - 23 = 130245749 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130245707) 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, 96969 + ... + 98302.
It is an arithmetic number, because the mean of its divisors is an integer number (17574480).
Almost surely, 2130245757 is an apocalyptic number.
It is an amenable number.
130245757 is a deficient number, since it is larger than the sum of its proper divisors (10350083).
130245757 is a wasteful number, since it uses less digits than its factorization.
130245757 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 195323.
The product of its (nonzero) digits is 29400, while the sum is 34.
The square root of 130245757 is about 11412.5263197944. The cubic root of 130245757 is about 506.8987202171.
Adding to 130245757 its reverse (757542031), we get a palindrome (887787788).
It can be divided in two parts, 13024 and 5757, that added together give a palindrome (18781).
The spelling of 130245757 in words is "one hundred thirty million, two hundred forty-five thousand, seven hundred fifty-seven".
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