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1314145231 = 7434365931
BaseRepresentation
bin100111001010100…
…0100001111001111
310101120210111100121
41032111010033033
510142410121411
6334222405411
744365023130
oct11625041717
93346714317
101314145231
11614889843
12308130867
1317c34b539
14c6763c87
157a586571
hex4e5443cf

1314145231 has 8 divisors (see below), whose sum is σ = 1536808064. Its totient is φ = 1100214360.

The previous prime is 1314145219. The next prime is 1314145247. The reversal of 1314145231 is 1325414131.

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

It is not a de Polignac number, because 1314145231 - 227 = 1179927503 is a prime.

It is a super-2 number, since 2×13141452312 = 3453955376320086722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1314145196 and 1314145205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314145201) 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, 2182665 + ... + 2183266.

It is an arithmetic number, because the mean of its divisors is an integer number (192101008).

Almost surely, 21314145231 is an apocalyptic number.

1314145231 is a deficient number, since it is larger than the sum of its proper divisors (222662833).

1314145231 is an equidigital number, since it uses as much as digits as its factorization.

1314145231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365981.

The product of its digits is 1440, while the sum is 25.

The square root of 1314145231 is about 36251.1410992813. The cubic root of 1314145231 is about 1095.3370746293.

Adding to 1314145231 its reverse (1325414131), we get a palindrome (2639559362).

The spelling of 1314145231 in words is "one billion, three hundred fourteen million, one hundred forty-five thousand, two hundred thirty-one".

Divisors: 1 7 43 301 4365931 30561517 187735033 1314145231