Base | Representation |
---|---|
bin | 100111000111011… |
… | …1100111010001111 |
3 | 10101110210001121200 |
4 | 1032032330322033 |
5 | 10142002323401 |
6 | 334124200543 |
7 | 44345266041 |
oct | 11616747217 |
9 | 3343701550 |
10 | 1312542351 |
11 | 61399454a |
12 | 307699153 |
13 | 17bc09aa3 |
14 | c6467a91 |
15 | 7a36b686 |
hex | 4e3bce8f |
1312542351 has 24 divisors (see below), whose sum is σ = 1944483840. Its totient is φ = 852761616.
The previous prime is 1312542331. The next prime is 1312542359. The reversal of 1312542351 is 1532452131.
It is not a de Polignac number, because 1312542351 - 214 = 1312525967 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1312542359) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94606 + ... + 107588.
It is an arithmetic number, because the mean of its divisors is an integer number (81020160).
Almost surely, 21312542351 is an apocalyptic number.
1312542351 is a deficient number, since it is larger than the sum of its proper divisors (631941489).
1312542351 is a wasteful number, since it uses less digits than its factorization.
1312542351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13275 (or 13272 counting only the distinct ones).
The product of its digits is 3600, while the sum is 27.
The square root of 1312542351 is about 36229.0263600887. The cubic root of 1312542351 is about 1094.8915611637.
Adding to 1312542351 its reverse (1532452131), we get a palindrome (2844994482).
The spelling of 1312542351 in words is "one billion, three hundred twelve million, five hundred forty-two thousand, three hundred fifty-one".
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