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1311430341 = 31333626419
BaseRepresentation
bin100111000101010…
…1101011011000101
310101101200120020010
41032022231123011
510141211232331
6334044300433
744332655034
oct11612553305
93341616203
101311430341
116132a5031
12307241719
1317b90a8b0
14c625871b
157a1ebe46
hex4e2ad6c5

1311430341 has 8 divisors (see below), whose sum is σ = 1883079520. Its totient is φ = 807034032.

The previous prime is 1311430313. The next prime is 1311430343. The reversal of 1311430341 is 1430341131.

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

It is not a de Polignac number, because 1311430341 - 27 = 1311430213 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 (1311430343) 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, 16813171 + ... + 16813248.

It is an arithmetic number, because the mean of its divisors is an integer number (235384940).

Almost surely, 21311430341 is an apocalyptic number.

It is an amenable number.

1311430341 is a deficient number, since it is larger than the sum of its proper divisors (571649179).

1311430341 is a wasteful number, since it uses less digits than its factorization.

1311430341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33626435.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1311430341 is about 36213.6761597052. The cubic root of 1311430341 is about 1094.5822697178.

Adding to 1311430341 its reverse (1430341131), we get a palindrome (2741771472).

The spelling of 1311430341 in words is "one billion, three hundred eleven million, four hundred thirty thousand, three hundred forty-one".

Divisors: 1 3 13 39 33626419 100879257 437143447 1311430341