Base | Representation |
---|---|
bin | 1111100100101… |
… | …11010101000001 |
3 | 100002211100212110 |
4 | 13302113111001 |
5 | 231421041030 |
6 | 20544045533 |
7 | 3144310104 |
oct | 762272501 |
9 | 302740773 |
10 | 130643265 |
11 | 67821245 |
12 | 379038a9 |
13 | 210b250c |
14 | 134ca73b |
15 | b7091b0 |
hex | 7c97541 |
130643265 has 16 divisors (see below), whose sum is σ = 210284928. Its totient is φ = 69257856.
The previous prime is 130643239. The next prime is 130643291. The reversal of 130643265 is 562346031.
It is an interprime number because it is at equal distance from previous prime (130643239) and next prime (130643291).
It is not a de Polignac number, because 130643265 - 27 = 130643137 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23572 + ... + 28581.
It is an arithmetic number, because the mean of its divisors is an integer number (13142808).
Almost surely, 2130643265 is an apocalyptic number.
130643265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130643265 is a deficient number, since it is larger than the sum of its proper divisors (79641663).
130643265 is a wasteful number, since it uses less digits than its factorization.
130643265 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52328.
The product of its (nonzero) digits is 12960, while the sum is 30.
The square root of 130643265 is about 11429.9284774665. The cubic root of 130643265 is about 507.4138787915.
Adding to 130643265 its reverse (562346031), we get a palindrome (692989296).
The spelling of 130643265 in words is "one hundred thirty million, six hundred forty-three thousand, two hundred sixty-five".
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