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29887325 = 521391961
BaseRepresentation
bin111001000000…
…0101101011101
32002020102200222
41302000231131
530122343300
62544331125
7512016026
oct162005535
962212628
1029887325
1115963876
12a013aa5
136265910
143d7dc4d
152955785
hex1c80b5d

29887325 has 12 divisors (see below), whose sum is σ = 39911508. Its totient is φ = 22070400.

The previous prime is 29887303. The next prime is 29887331. The reversal of 29887325 is 52378892.

It can be written as a sum of positive squares in 6 ways, for example, as 5067001 + 24820324 = 2251^2 + 4982^2 .

It is not a de Polignac number, because 29887325 - 26 = 29887261 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45656 + ... + 46305.

It is an arithmetic number, because the mean of its divisors is an integer number (3325959).

Almost surely, 229887325 is an apocalyptic number.

29887325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29887325 is a deficient number, since it is larger than the sum of its proper divisors (10024183).

29887325 is a wasteful number, since it uses less digits than its factorization.

29887325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91984 (or 91979 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 29887325 is about 5466.9301257653. The cubic root of 29887325 is about 310.3337543126. Note that the first 3 decimals are identical.

The spelling of 29887325 in words is "twenty-nine million, eight hundred eighty-seven thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 91961 459805 1195493 2299025 5977465 29887325