Base | Representation |
---|---|
bin | 100111001000001… |
… | …0011111100100000 |
3 | 10101111110011122021 |
4 | 1032100103330200 |
5 | 10142100230343 |
6 | 334135551224 |
7 | 44351312302 |
oct | 11620237440 |
9 | 3344404567 |
10 | 1312898848 |
11 | 614108378 |
12 | 30782b514 |
13 | 17c003131 |
14 | c651b972 |
15 | 7a3dc0ed |
hex | 4e413f20 |
1312898848 has 48 divisors (see below), whose sum is σ = 2743322904. Its totient is φ = 616366080.
The previous prime is 1312898813. The next prime is 1312898849. The reversal of 1312898848 is 8488982131.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1234257424 + 78641424 = 35132^2 + 8868^2 .
It is a junction number, because it is equal to n+sod(n) for n = 1312898795 and 1312898804.
It is not an unprimeable number, because it can be changed into a prime (1312898849) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245968 + ... + 251248.
Almost surely, 21312898848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1312898848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371661452).
1312898848 is an abundant number, since it is smaller than the sum of its proper divisors (1430424056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1312898848 is a wasteful number, since it uses less digits than its factorization.
1312898848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5765 (or 5757 counting only the distinct ones).
The product of its digits is 884736, while the sum is 52.
The square root of 1312898848 is about 36233.9460727092. The cubic root of 1312898848 is about 1094.9906792921.
The spelling of 1312898848 in words is "one billion, three hundred twelve million, eight hundred ninety-eight thousand, eight hundred forty-eight".
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