Base | Representation |
---|---|
bin | 1111100111010… |
… | …10001010100001 |
3 | 100010110121021222 |
4 | 13303222022201 |
5 | 232012420221 |
6 | 20555224425 |
7 | 3150222233 |
oct | 763521241 |
9 | 303417258 |
10 | 130982561 |
11 | 67a33156 |
12 | 37a48115 |
13 | 211a0a98 |
14 | 13578253 |
15 | b7749ab |
hex | 7cea2a1 |
130982561 has 8 divisors (see below), whose sum is σ = 140810880. Its totient is φ = 121447728.
The previous prime is 130982543. The next prime is 130982567. The reversal of 130982561 is 165289031.
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 130982561 - 210 = 130981537 is a prime.
It is a super-2 number, since 2×1309825612 = 34312862572237442, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130982567) 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, 72446 + ... + 74231.
It is an arithmetic number, because the mean of its divisors is an integer number (17601360).
Almost surely, 2130982561 is an apocalyptic number.
It is an amenable number.
130982561 is a deficient number, since it is larger than the sum of its proper divisors (9828319).
130982561 is a wasteful number, since it uses less digits than its factorization.
130982561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146743.
The product of its (nonzero) digits is 12960, while the sum is 35.
The square root of 130982561 is about 11444.7612906517. The cubic root of 130982561 is about 507.8527703310.
The spelling of 130982561 in words is "one hundred thirty million, nine hundred eighty-two thousand, five hundred sixty-one".
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