Base | Representation |
---|---|
bin | 101010101010000… |
… | …0000111111011110 |
3 | 10200202021002121200 |
4 | 1111110000333132 |
5 | 10412403412202 |
6 | 354005540330 |
7 | 50316636222 |
oct | 12524007736 |
9 | 3622232550 |
10 | 1431310302 |
11 | 674a34684 |
12 | 33b4146a6 |
13 | 19a6c1c96 |
14 | d8142782 |
15 | 859cbe1c |
hex | 55500fde |
1431310302 has 12 divisors (see below), whose sum is σ = 3101172360. Its totient is φ = 477103428.
The previous prime is 1431310301. The next prime is 1431310403. The reversal of 1431310302 is 2030131341.
It is a super-2 number, since 2×14313103022 = 4097298361222662408, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 79517239 = 1431310302 / (1 + 4 + 3 + 1 + 3 + 1 + 0 + 3 + 0 + 2).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1431310301) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39758602 + ... + 39758637.
It is an arithmetic number, because the mean of its divisors is an integer number (258431030).
Almost surely, 21431310302 is an apocalyptic number.
1431310302 is an abundant number, since it is smaller than the sum of its proper divisors (1669862058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1431310302 is a wasteful number, since it uses less digits than its factorization.
1431310302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79517247 (or 79517244 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 1431310302 is about 37832.6618413244. The cubic root of 1431310302 is about 1126.9671727194.
Adding to 1431310302 its reverse (2030131341), we get a palindrome (3461441643).
The spelling of 1431310302 in words is "one billion, four hundred thirty-one million, three hundred ten thousand, three hundred two".
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