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29132825 = 526131901
BaseRepresentation
bin110111100100…
…0100000011001
32000211002201112
41233020200121
524424222300
62520230105
7502424231
oct157104031
960732645
1029132825
1115498a17
12990b335
136060377
143c24cc1
152856e35
hex1bc8819

29132825 has 12 divisors (see below), whose sum is σ = 36202668. Its totient is φ = 23256000.

The previous prime is 29132821. The next prime is 29132863. The reversal of 29132825 is 52823192.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 13601344 + 15531481 = 3688^2 + 3941^2 .

It is not a de Polignac number, because 29132825 - 22 = 29132821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29132791 and 29132800.

It is not an unprimeable number, because it can be changed into a prime (29132821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14375 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (3016889).

Almost surely, 229132825 is an apocalyptic number.

29132825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29132825 is a deficient number, since it is larger than the sum of its proper divisors (7069843).

29132825 is a wasteful number, since it uses less digits than its factorization.

29132825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524 (or 2519 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 29132825 is about 5397.4832097932. The cubic root of 29132825 is about 307.7000262887.

The spelling of 29132825 in words is "twenty-nine million, one hundred thirty-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 613 1901 3065 9505 15325 47525 1165313 5826565 29132825