Base | Representation |
---|---|
bin | 111111011111011… |
… | …0100010100100001 |
3 | 12111110201100112012 |
4 | 1332332310110201 |
5 | 13330340141244 |
6 | 551221442305 |
7 | 103536033236 |
oct | 17676642441 |
9 | 5443640465 |
10 | 2130396449 |
11 | 9a360a425 |
12 | 4b5570395 |
13 | 27c4a141c |
14 | 162d1d78d |
15 | c706d89e |
hex | 7efb4521 |
2130396449 has 8 divisors (see below), whose sum is σ = 2212255752. Its totient is φ = 2049960960.
The previous prime is 2130396439. The next prime is 2130396467. The reversal of 2130396449 is 9446930312.
It can be written as a sum of positive squares in 4 ways, for example, as 75134224 + 2055262225 = 8668^2 + 45335^2 .
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 2130396449 - 212 = 2130392353 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2130396409) 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, 352904 + ... + 358889.
It is an arithmetic number, because the mean of its divisors is an integer number (276531969).
Almost surely, 22130396449 is an apocalyptic number.
It is an amenable number.
2130396449 is a deficient number, since it is larger than the sum of its proper divisors (81859303).
2130396449 is an equidigital number, since it uses as much as digits as its factorization.
2130396449 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 711907.
The product of its (nonzero) digits is 139968, while the sum is 41.
The square root of 2130396449 is about 46156.2178801513. The cubic root of 2130396449 is about 1286.7281726335.
The spelling of 2130396449 in words is "two billion, one hundred thirty million, three hundred ninety-six thousand, four hundred forty-nine".
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