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84260025 = 32521812069
BaseRepresentation
bin1010000010110…
…11010010111001
312212112212000200
411001123102321
5133032310100
612205552413
72042125023
oct501332271
9185485020
1084260025
1143620893
1224275709
13145c2405
14b295013
1575e5e00
hex505b4b9

84260025 has 36 divisors (see below), whose sum is σ = 151826220. Its totient is φ = 44668800.

The previous prime is 84260021. The next prime is 84260047. The reversal of 84260025 is 52006248.

It can be written as a sum of positive squares in 6 ways, for example, as 32592681 + 51667344 = 5709^2 + 7188^2 .

It is not a de Polignac number, because 84260025 - 22 = 84260021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84260021) 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 35 ways as a sum of consecutive naturals, for example, 39691 + ... + 41759.

It is an arithmetic number, because the mean of its divisors is an integer number (4217395).

Almost surely, 284260025 is an apocalyptic number.

It is an amenable number.

84260025 is a deficient number, since it is larger than the sum of its proper divisors (67566195).

84260025 is a wasteful number, since it uses less digits than its factorization.

84260025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 84260025 is about 9179.3259556462. The cubic root of 84260025 is about 438.4033470966.

The spelling of 84260025 in words is "eighty-four million, two hundred sixty thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 181 225 543 905 1629 2069 2715 4525 6207 8145 10345 13575 18621 31035 40725 51725 93105 155175 374489 465525 1123467 1872445 3370401 5617335 9362225 16852005 28086675 84260025