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13544341213 = 132958135221
BaseRepresentation
bin11001001110100111…
…00011111011011101
31021221221001211020011
430213103203323131
5210214322404323
610115554123221
7656433000154
oct144723437335
937857054204
1013544341213
115820478027
12275bb80511
13137b0b05b0
14926b8459b
1554412820d
hex3274e3edd

13544341213 has 8 divisors (see below), whose sum is σ = 14587120856. Its totient is φ = 12501691200.

The previous prime is 13544341207. The next prime is 13544341219. The reversal of 13544341213 is 31214344531.

It is an interprime number because it is at equal distance from previous prime (13544341207) and next prime (13544341219).

It can be written as a sum of positive squares in 4 ways, for example, as 4123309369 + 9421031844 = 64213^2 + 97062^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13544341213 - 213 = 13544333021 is a prime.

It is a super-2 number, since 2×135443412132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13544341219) 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, 366943 + ... + 402163.

It is an arithmetic number, because the mean of its divisors is an integer number (1823390107).

Almost surely, 213544341213 is an apocalyptic number.

13544341213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13544341213 is a deficient number, since it is larger than the sum of its proper divisors (1042779643).

13544341213 is a wasteful number, since it uses less digits than its factorization.

13544341213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64815.

The product of its digits is 17280, while the sum is 31.

Adding to 13544341213 its reverse (31214344531), we get a palindrome (44758685744).

The spelling of 13544341213 in words is "thirteen billion, five hundred forty-four million, three hundred forty-one thousand, two hundred thirteen".

Divisors: 1 13 29581 35221 384553 457873 1041872401 13544341213