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13542121342 = 213994839929
BaseRepresentation
bin11001001110010110…
…00101111101111110
31021221202220001010201
430213023011331332
5210213240340332
610115434354114
7656405063221
oct144713057576
937852801121
1013542121342
11581a1a1222
12275b28b93a
13137a7b4069
149267675b8
15543d3a5e7
hex3272c5f7e

13542121342 has 8 divisors (see below), whose sum is σ = 20327706000. Its totient is φ = 6766219344.

The previous prime is 13542121321. The next prime is 13542121343. The reversal of 13542121342 is 24312124531.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13542121342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13542121343) 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, 2417167 + ... + 2422762.

It is an arithmetic number, because the mean of its divisors is an integer number (2540963250).

Almost surely, 213542121342 is an apocalyptic number.

13542121342 is a deficient number, since it is larger than the sum of its proper divisors (6785584658).

13542121342 is a wasteful number, since it uses less digits than its factorization.

13542121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841330.

The product of its digits is 5760, while the sum is 28.

Adding to 13542121342 its reverse (24312124531), we get a palindrome (37854245873).

The spelling of 13542121342 in words is "thirteen billion, five hundred forty-two million, one hundred twenty-one thousand, three hundred forty-two".

Divisors: 1 2 1399 2798 4839929 9679858 6771060671 13542121342