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13152513 = 311419721
BaseRepresentation
bin110010001011…
…000100000001
3220202012212010
4302023010001
511331340023
61145523133
7216536343
oct62130401
926665763
1013152513
117473750
1244a34a9
13295676a
141a65293
15124c093
hexc8b101

13152513 has 16 divisors (see below), whose sum is σ = 19599552. Its totient is φ = 7776000.

The previous prime is 13152511. The next prime is 13152563. The reversal of 13152513 is 31525131.

It is not a de Polignac number, because 13152513 - 21 = 13152511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13152513.

It is not an unprimeable number, because it can be changed into a prime (13152511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3508 + ... + 6213.

It is an arithmetic number, because the mean of its divisors is an integer number (1224972).

Almost surely, 213152513 is an apocalyptic number.

It is an amenable number.

13152513 is a deficient number, since it is larger than the sum of its proper divisors (6447039).

13152513 is a wasteful number, since it uses less digits than its factorization.

13152513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9776.

The product of its digits is 450, while the sum is 21.

The square root of 13152513 is about 3626.6393534511. The cubic root of 13152513 is about 236.0494067296.

Adding to 13152513 its reverse (31525131), we get a palindrome (44677644).

It can be divided in two parts, 1315 and 2513, that added together give a triangular number (3828 = T87).

The spelling of 13152513 in words is "thirteen million, one hundred fifty-two thousand, five hundred thirteen".

Divisors: 1 3 11 33 41 123 451 1353 9721 29163 106931 320793 398561 1195683 4384171 13152513