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29089925 = 521936029
BaseRepresentation
bin110111011111…
…0000010000101
32000201220212122
41232332002011
524421334200
62515255325
7502155164
oct156760205
960656778
1029089925
1115469767
1298aa545
136046997
143c133db
152849385
hex1bbe085

29089925 has 12 divisors (see below), whose sum is σ = 36264420. Its totient is φ = 23147520.

The previous prime is 29089909. The next prime is 29089927. The reversal of 29089925 is 52998092.

It can be written as a sum of positive squares in 6 ways, for example, as 5476 + 29084449 = 74^2 + 5393^2 .

It is not a de Polignac number, because 29089925 - 24 = 29089909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29089927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1811 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (3022035).

Almost surely, 229089925 is an apocalyptic number.

29089925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29089925 is a deficient number, since it is larger than the sum of its proper divisors (7174495).

29089925 is a wasteful number, since it uses less digits than its factorization.

29089925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232 (or 6227 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 29089925 is about 5393.5076712655. The cubic root of 29089925 is about 307.5489159189.

The spelling of 29089925 in words is "twenty-nine million, eighty-nine thousand, nine hundred twenty-five".

Divisors: 1 5 25 193 965 4825 6029 30145 150725 1163597 5817985 29089925