Base | Representation |
---|---|
bin | 101010101001111… |
… | …1110110011100001 |
3 | 10200202020122022221 |
4 | 1111103332303201 |
5 | 10412403120340 |
6 | 354005431041 |
7 | 50316601135 |
oct | 12523766341 |
9 | 3622218287 |
10 | 1431301345 |
11 | 674a28981 |
12 | 33b40b481 |
13 | 19a6bab96 |
14 | d813d3c5 |
15 | 859c944a |
hex | 554fece1 |
1431301345 has 16 divisors (see below), whose sum is σ = 1738685520. Its totient is φ = 1131024384.
The previous prime is 1431301307. The next prime is 1431301357. The reversal of 1431301345 is 5431031341.
It can be written as a sum of positive squares in 8 ways, for example, as 70576801 + 1360724544 = 8401^2 + 36888^2 .
It is a cyclic number.
It is not a de Polignac number, because 1431301345 - 211 = 1431299297 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179769 + ... + 187561.
It is an arithmetic number, because the mean of its divisors is an integer number (108667845).
Almost surely, 21431301345 is an apocalyptic number.
It is an amenable number.
1431301345 is a deficient number, since it is larger than the sum of its proper divisors (307384175).
1431301345 is a wasteful number, since it uses less digits than its factorization.
1431301345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8244.
The product of its (nonzero) digits is 2160, while the sum is 25.
The square root of 1431301345 is about 37832.5434645888. The cubic root of 1431301345 is about 1126.9648218976.
Adding to 1431301345 its reverse (5431031341), we get a palindrome (6862332686).
The spelling of 1431301345 in words is "one billion, four hundred thirty-one million, three hundred one thousand, three hundred forty-five".
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