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13530144045 = 3511357122963
BaseRepresentation
bin11001001100111010…
…11001110100101101
31021220221100112101010
430212131121310231
5210202204102140
610114325535433
7656201220045
oct144635316455
937827315333
1013530144045
115813460530
122757274579
13137817c4c2
14924d2a725
15542c71880
hex326759d2d

13530144045 has 32 divisors (see below), whose sum is σ = 23623893504. Its totient is φ = 6557947200.

The previous prime is 13530144041. The next prime is 13530144049. The reversal of 13530144045 is 54044103531.

It is an interprime number because it is at equal distance from previous prime (13530144041) and next prime (13530144049).

It is not a de Polignac number, because 13530144045 - 22 = 13530144041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530144041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577734 + ... + 600696.

It is an arithmetic number, because the mean of its divisors is an integer number (738246672).

Almost surely, 213530144045 is an apocalyptic number.

13530144045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13530144045 is a deficient number, since it is larger than the sum of its proper divisors (10093749459).

13530144045 is a wasteful number, since it uses less digits than its factorization.

13530144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26553.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13530144045 its reverse (54044103531), we get a palindrome (67574247576).

The spelling of 13530144045 in words is "thirteen billion, five hundred thirty million, one hundred forty-four thousand, forty-five".

Divisors: 1 3 5 11 15 33 55 165 3571 10713 17855 22963 39281 53565 68889 114815 117843 196405 252593 344445 589215 757779 1262965 3788895 82000873 246002619 410004365 902009603 1230013095 2706028809 4510048015 13530144045