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84330025 = 5213313829
BaseRepresentation
bin1010000011011…
…00011000101001
312212200102001021
411001230120221
5133042030100
612211252441
72042536063
oct501543051
9185612037
1084330025
114366943a
12242aa121
1314618230
14b2b2733
15760ba1a
hex506c629

84330025 has 24 divisors (see below), whose sum is σ = 113109080. Its totient is φ = 62000640.

The previous prime is 84330011. The next prime is 84330041. The reversal of 84330025 is 52003348.

It can be written as a sum of positive squares in 12 ways, for example, as 63059481 + 21270544 = 7941^2 + 4612^2 .

It is not a de Polignac number, because 84330025 - 27 = 84329897 is a prime.

It is a super-2 number, since 2×843300252 = 14223106233001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 101311 + ... + 102139.

Almost surely, 284330025 is an apocalyptic number.

It is an amenable number.

84330025 is a deficient number, since it is larger than the sum of its proper divisors (28779055).

84330025 is a wasteful number, since it uses less digits than its factorization.

84330025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 84330025 is about 9183.1380801989. The cubic root of 84330025 is about 438.5247163936.

The spelling of 84330025 in words is "eighty-four million, three hundred thirty thousand, twenty-five".

Divisors: 1 5 13 25 65 313 325 829 1565 4069 4145 7825 10777 20345 20725 53885 101725 259477 269425 1297385 3373201 6486925 16866005 84330025