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1344130431 = 3764006211
BaseRepresentation
bin101000000011101…
…1100110101111111
310110200012220022120
41100013130311333
510223044133211
6341213214023
745210630420
oct12007346577
93420186276
101344130431
1162a7aa0a6
12316191313
13185619867
14ca72b647
157d00ad06
hex501dcd7f

1344130431 has 8 divisors (see below), whose sum is σ = 2048198784. Its totient is φ = 768074520.

The previous prime is 1344130387. The next prime is 1344130451. The reversal of 1344130431 is 1340314431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1344130431 - 218 = 1343868287 is a prime.

It is a super-2 number, since 2×13441304312 = 3613373231080491522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344130451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32003085 + ... + 32003126.

It is an arithmetic number, because the mean of its divisors is an integer number (256024848).

Almost surely, 21344130431 is an apocalyptic number.

1344130431 is a deficient number, since it is larger than the sum of its proper divisors (704068353).

1344130431 is an equidigital number, since it uses as much as digits as its factorization.

1344130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64006221.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1344130431 is about 36662.3844150923. The cubic root of 1344130431 is about 1103.6053687270.

Adding to 1344130431 its reverse (1340314431), we get a palindrome (2684444862).

The spelling of 1344130431 in words is "one billion, three hundred forty-four million, one hundred thirty thousand, four hundred thirty-one".

Divisors: 1 3 7 21 64006211 192018633 448043477 1344130431