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1420264513 = 2361750631
BaseRepresentation
bin101010010100111…
…1000010001000001
310122222110220122101
41110221320101001
510402041431023
6352533110401
750124022603
oct12451702101
93588426571
101420264513
1166977a828
12337788401
13198325405
14d68a9173
1584a491ad
hex54a78441

1420264513 has 4 divisors (see below), whose sum is σ = 1482015168. Its totient is φ = 1358513860.

The previous prime is 1420264511. The next prime is 1420264529. The reversal of 1420264513 is 3154620241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3154620241 = 7144431271.

It is not a de Polignac number, because 1420264513 - 21 = 1420264511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420264511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30875293 + ... + 30875338.

It is an arithmetic number, because the mean of its divisors is an integer number (370503792).

Almost surely, 21420264513 is an apocalyptic number.

It is an amenable number.

1420264513 is a deficient number, since it is larger than the sum of its proper divisors (61750655).

1420264513 is an equidigital number, since it uses as much as digits as its factorization.

1420264513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61750654.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1420264513 is about 37686.3969224971. The cubic root of 1420264513 is about 1124.0606514069.

Adding to 1420264513 its reverse (3154620241), we get a palindrome (4574884754).

The spelling of 1420264513 in words is "one billion, four hundred twenty million, two hundred sixty-four thousand, five hundred thirteen".

Divisors: 1 23 61750631 1420264513