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13143852 = 2232365107
BaseRepresentation
bin110010001000…
…111100101100
3220201202222100
4302020330230
511331100402
61145415100
7216502161
oct62107454
926652870
1013143852
117468197
12449a490
132952837
141a62068
15124971c
hexc88f2c

13143852 has 18 divisors (see below), whose sum is σ = 33224828. Its totient is φ = 4381272.

The previous prime is 13143847. The next prime is 13143881. The reversal of 13143852 is 25834131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182518 + ... + 182589.

Almost surely, 213143852 is an apocalyptic number.

13143852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13143852 is an abundant number, since it is smaller than the sum of its proper divisors (20080976).

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

13143852 is a wasteful number, since it uses less digits than its factorization.

13143852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365117 (or 365112 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13143852 is about 3625.4450761251. The cubic root of 13143852 is about 235.9975820876.

Adding to 13143852 its reverse (25834131), we get a palindrome (38977983).

The spelling of 13143852 in words is "thirteen million, one hundred forty-three thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 365107 730214 1095321 1460428 2190642 3285963 4381284 6571926 13143852