Base | Representation |
---|---|
bin | 111100101000100100… |
… | …0000001011000111101 |
3 | 110110002120020020000121 |
4 | 1321101020001120331 |
5 | 4113132234414341 |
6 | 135452341454541 |
7 | 12256504246321 |
oct | 1712110013075 |
9 | 413076206017 |
10 | 130210076221 |
11 | 50249214545 |
12 | 2129b111451 |
13 | c3815792a4 |
14 | 6433351981 |
15 | 35c150d4d1 |
hex | 1e5120163d |
130210076221 has 4 divisors (see below), whose sum is σ = 131083969500. Its totient is φ = 129336182944.
The previous prime is 130210076177. The next prime is 130210076231. The reversal of 130210076221 is 122670012031.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122670012031 = 7 ⋅17524287433.
It can be written as a sum of positive squares in 2 ways, for example, as 49475104900 + 80734971321 = 222430^2 + 284139^2 .
It is a cyclic number.
It is not a de Polignac number, because 130210076221 - 213 = 130210068029 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 (130210076231) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436946416 + ... + 436946713.
It is an arithmetic number, because the mean of its divisors is an integer number (32770992375).
Almost surely, 2130210076221 is an apocalyptic number.
It is an amenable number.
130210076221 is a deficient number, since it is larger than the sum of its proper divisors (873893279).
130210076221 is an equidigital number, since it uses as much as digits as its factorization.
130210076221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 873893278.
The product of its (nonzero) digits is 1008, while the sum is 25.
Adding to 130210076221 its reverse (122670012031), we get a palindrome (252880088252).
The spelling of 130210076221 in words is "one hundred thirty billion, two hundred ten million, seventy-six thousand, two hundred twenty-one".
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