Base | Representation |
---|---|
bin | 111100101000111001… |
… | …0110110100011011111 |
3 | 110110010100100122200102 |
4 | 1321101302312203133 |
5 | 4113143123212111 |
6 | 135453422251315 |
7 | 12260001551420 |
oct | 1712162664337 |
9 | 413110318612 |
10 | 130221304031 |
11 | 50254593125 |
12 | 212a2a26b3b |
13 | c3839aa970 |
14 | 6434a35647 |
15 | 35c24ca13b |
hex | 1e51cb68df |
130221304031 has 16 divisors (see below), whose sum is σ = 161770258944. Its totient is φ = 102069314784.
The previous prime is 130221304013. The next prime is 130221304039. The reversal of 130221304031 is 130403122031.
It is a cyclic number.
It is not a de Polignac number, because 130221304031 - 218 = 130221041887 is a prime.
It is a super-2 number, since 2×1302213040312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 130221303994 and 130221304012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130221304039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6677195 + ... + 6696668.
It is an arithmetic number, because the mean of its divisors is an integer number (10110641184).
Almost surely, 2130221304031 is an apocalyptic number.
130221304031 is a deficient number, since it is larger than the sum of its proper divisors (31548954913).
130221304031 is a wasteful number, since it uses less digits than its factorization.
130221304031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13373990.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 130221304031 its reverse (130403122031), we get a palindrome (260624426062).
The spelling of 130221304031 in words is "one hundred thirty billion, two hundred twenty-one million, three hundred four thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •