Base | Representation |
---|---|
bin | 1111011111110… |
… | …10101101010001 |
3 | 100001121202212110 |
4 | 13233322231101 |
5 | 231240023440 |
6 | 20522215533 |
7 | 3135665556 |
oct | 757725521 |
9 | 301552773 |
10 | 130001745 |
11 | 67423265 |
12 | 376545a9 |
13 | 20c19513 |
14 | 133a0a2d |
15 | b62e080 |
hex | 7bfab51 |
130001745 has 8 divisors (see below), whose sum is σ = 208002816. Its totient is φ = 69334256.
The previous prime is 130001731. The next prime is 130001749. The reversal of 130001745 is 547100031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130001745 - 27 = 130001617 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130001749) 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, 4333377 + ... + 4333406.
It is an arithmetic number, because the mean of its divisors is an integer number (26000352).
Almost surely, 2130001745 is an apocalyptic number.
130001745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130001745 is a deficient number, since it is larger than the sum of its proper divisors (78001071).
130001745 is an equidigital number, since it uses as much as digits as its factorization.
130001745 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8666791.
The product of its (nonzero) digits is 420, while the sum is 21.
The square root of 130001745 is about 11401.8307740468. The cubic root of 130001745 is about 506.5819685194.
Adding to 130001745 its reverse (547100031), we get a palindrome (677101776).
The spelling of 130001745 in words is "one hundred thirty million, one thousand, seven hundred forty-five".
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