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29328025 = 521173121
BaseRepresentation
bin110111111100…
…0001010011001
32001012000111011
41233320022121
530001444100
62524333521
7504166306
oct157701231
961160434
1029328025
1115611641
1299a42a1
1360cb17c
143c760ad
152894bba
hex1bf8299

29328025 has 6 divisors (see below), whose sum is σ = 36366782. Its totient is φ = 23462400.

The previous prime is 29328011. The next prime is 29328029. The reversal of 29328025 is 52082392.

It can be written as a sum of positive squares in 3 ways, for example, as 394384 + 28933641 = 628^2 + 5379^2 .

It is not a de Polignac number, because 29328025 - 25 = 29327993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29328029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586536 + ... + 586585.

Almost surely, 229328025 is an apocalyptic number.

29328025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29328025 is a deficient number, since it is larger than the sum of its proper divisors (7038757).

29328025 is a wasteful number, since it uses less digits than its factorization.

29328025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173131 (or 1173126 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 29328025 is about 5415.5355229192. The cubic root of 29328025 is about 308.3857292663.

The spelling of 29328025 in words is "twenty-nine million, three hundred twenty-eight thousand, twenty-five".

Divisors: 1 5 25 1173121 5865605 29328025