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1314230221 = 2374755343
BaseRepresentation
bin100111001010101…
…1000111111001101
310101120221210221101
41032111120333031
510142420331341
6334224303101
744365525663
oct11625307715
93346853841
101314230221
11614937687
12308171a91
1317c37b125
14c6786c33
157a5a1831
hex4e558fcd

1314230221 has 4 divisors (see below), whose sum is σ = 1314309312. Its totient is φ = 1314151132.

The previous prime is 1314230173. The next prime is 1314230231. The reversal of 1314230221 is 1220324131.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1314230221 - 219 = 1313705933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314230231) 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, 3925 + ... + 51418.

It is an arithmetic number, because the mean of its divisors is an integer number (328577328).

Almost surely, 21314230221 is an apocalyptic number.

It is an amenable number.

1314230221 is a deficient number, since it is larger than the sum of its proper divisors (79091).

1314230221 is an equidigital number, since it uses as much as digits as its factorization.

1314230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79090.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1314230221 is about 36252.3133192904. The cubic root of 1314230221 is about 1095.3606871112.

Adding to 1314230221 its reverse (1220324131), we get a palindrome (2534554352).

The spelling of 1314230221 in words is "one billion, three hundred fourteen million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 23747 55343 1314230221