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1449430513 = 3146755823
BaseRepresentation
bin101011001100100…
…1000110111110001
310202000100200212121
41112121020313301
510432023234023
6355454154241
750626645636
oct12631106761
93660320777
101449430513
11684190663
123454b2981
131a13978bb
14da6dc18d
15873aad5d
hex56648df1

1449430513 has 4 divisors (see below), whose sum is σ = 1496186368. Its totient is φ = 1402674660.

The previous prime is 1449430511. The next prime is 1449430517. The reversal of 1449430513 is 3150349441.

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: 3150349441 = 17185314673.

It is a cyclic number.

It is not a de Polignac number, because 1449430513 - 21 = 1449430511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449430511) 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, 23377881 + ... + 23377942.

It is an arithmetic number, because the mean of its divisors is an integer number (374046592).

Almost surely, 21449430513 is an apocalyptic number.

It is an amenable number.

1449430513 is a deficient number, since it is larger than the sum of its proper divisors (46755855).

1449430513 is an equidigital number, since it uses as much as digits as its factorization.

1449430513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46755854.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1449430513 is about 38071.3870643033. The cubic root of 1449430513 is about 1131.7029985041.

Adding to 1449430513 its reverse (3150349441), we get a palindrome (4599779954).

The spelling of 1449430513 in words is "one billion, four hundred forty-nine million, four hundred thirty thousand, five hundred thirteen".

Divisors: 1 31 46755823 1449430513