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13531132415 = 5231673132251
BaseRepresentation
bin11001001101000010…
…01011000111111111
31021221000012202011102
430212201023013333
5210202432214130
610114403043315
7656212504433
oct144641130777
937830182142
1013531132415
115813a76069
12275767053b
131378437338
149251069c3
15542db9645
hex32684b1ff

13531132415 has 32 divisors (see below), whose sum is σ = 17106840576. Its totient is φ = 10254816000.

The previous prime is 13531132411. The next prime is 13531132441. The reversal of 13531132415 is 51423113531.

It is not a de Polignac number, because 13531132415 - 22 = 13531132411 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 (13531132411) 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, 6010040 + ... + 6012290.

It is an arithmetic number, because the mean of its divisors is an integer number (534588768).

Almost surely, 213531132415 is an apocalyptic number.

13531132415 is a deficient number, since it is larger than the sum of its proper divisors (3575708161).

13531132415 is a wasteful number, since it uses less digits than its factorization.

13531132415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

The product of its digits is 5400, while the sum is 29.

Adding to 13531132415 its reverse (51423113531), we get a palindrome (64954245946).

The spelling of 13531132415 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-two thousand, four hundred fifteen".

Divisors: 1 5 23 115 167 313 835 1565 2251 3841 7199 11255 19205 35995 51773 52271 258865 261355 375917 704563 1202233 1879585 3522815 6011165 8646091 16204949 43230455 81024745 117662021 588310105 2706226483 13531132415