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13152340 = 225657617
BaseRepresentation
bin110010001011…
…000001010100
3220202012121201
4302023001110
511331333330
61145522244
7216536005
oct62130124
926665551
1013152340
117473603
1244a3384
132956666
141a651ac
15124beca
hexc8b054

13152340 has 12 divisors (see below), whose sum is σ = 27619956. Its totient is φ = 5260928.

The previous prime is 13152329. The next prime is 13152397. The reversal of 13152340 is 4325131.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 3392964 = 3124^2 + 1842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328789 + ... + 328828.

It is an arithmetic number, because the mean of its divisors is an integer number (2301663).

Almost surely, 213152340 is an apocalyptic number.

13152340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13152340 is an abundant number, since it is smaller than the sum of its proper divisors (14467616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13152340 is a wasteful number, since it uses less digits than its factorization.

13152340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657626 (or 657624 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13152340 is about 3626.6155020901. The cubic root of 13152340 is about 236.0483717759.

Adding to 13152340 its reverse (4325131), we get a palindrome (17477471).

It can be divided in two parts, 1315 and 2340, that added together give a triangular number (3655 = T85).

The spelling of 13152340 in words is "thirteen million, one hundred fifty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 657617 1315234 2630468 3288085 6576170 13152340