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1314401421 = 3438133807
BaseRepresentation
bin100111001011000…
…0010110010001101
310101121021111210010
41032112002302031
510142441321141
6334232103433
744400141054
oct11626026215
93347244703
101314401421
11614a44273
12308234b79
1317c40b028
14c67cd39b
157a5d7416
hex4e582c8d

1314401421 has 4 divisors (see below), whose sum is σ = 1752535232. Its totient is φ = 876267612.

The previous prime is 1314401383. The next prime is 1314401449. The reversal of 1314401421 is 1241044131.

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.

It is not a de Polignac number, because 1314401421 - 210 = 1314400397 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 (1314402421) 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, 219066901 + ... + 219066906.

It is an arithmetic number, because the mean of its divisors is an integer number (438133808).

Almost surely, 21314401421 is an apocalyptic number.

It is an amenable number.

1314401421 is a deficient number, since it is larger than the sum of its proper divisors (438133811).

1314401421 is an equidigital number, since it uses as much as digits as its factorization.

1314401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438133810.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1314401421 is about 36254.6744710251. The cubic root of 1314401421 is about 1095.4082479328.

Adding to 1314401421 its reverse (1241044131), we get a palindrome (2555445552).

The spelling of 1314401421 in words is "one billion, three hundred fourteen million, four hundred one thousand, four hundred twenty-one".

Divisors: 1 3 438133807 1314401421