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13312743 = 337311897
BaseRepresentation
bin110010110010…
…001011100111
3221001100122120
4302302023213
511402001433
61153201023
7221104443
oct62621347
927040576
1013312743
117573074
124560173
1329b1682
141aa7823
15127e7b3
hexcb22e7

13312743 has 8 divisors (see below), whose sum is σ = 17799408. Its totient is φ = 8850624.

The previous prime is 13312727. The next prime is 13312753. The reversal of 13312743 is 34721331.

13312743 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13312743 - 24 = 13312727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (2224926).

Almost surely, 213312743 is an apocalyptic number.

13312743 is a deficient number, since it is larger than the sum of its proper divisors (4486665).

13312743 is a wasteful number, since it uses less digits than its factorization.

13312743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12273.

The product of its digits is 1512, while the sum is 24.

The square root of 13312743 is about 3648.6631798509. The cubic root of 13312743 is about 237.0040947146.

The spelling of 13312743 in words is "thirteen million, three hundred twelve thousand, seven hundred forty-three".

Divisors: 1 3 373 1119 11897 35691 4437581 13312743