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1420314431 is a prime number
BaseRepresentation
bin101010010101000…
…0100011100111111
310122222120110010012
41110222010130333
510402100030211
6352534133435
750124321254
oct12452043477
93588513105
101420314431
11669804288
123377b127b
13198342053
14d68bd42b
1584a58d8b
hex54a8473f

1420314431 has 2 divisors, whose sum is σ = 1420314432. Its totient is φ = 1420314430.

The previous prime is 1420314407. The next prime is 1420314439. The reversal of 1420314431 is 1344130241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1344130241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420314431 - 222 = 1416120127 is a prime.

It is a super-2 number, since 2×14203144312 = 4034586165813707522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420314397 and 1420314406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420314439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710157215 + 710157216.

It is an arithmetic number, because the mean of its divisors is an integer number (710157216).

Almost surely, 21420314431 is an apocalyptic number.

1420314431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420314431 is an equidigital number, since it uses as much as digits as its factorization.

1420314431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1420314431 is about 37687.0591980855. The cubic root of 1420314431 is about 1124.0738203628.

Adding to 1420314431 its reverse (1344130241), we get a palindrome (2764444672).

The spelling of 1420314431 in words is "one billion, four hundred twenty million, three hundred fourteen thousand, four hundred thirty-one".