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84015130 = 258401513
BaseRepresentation
bin1010000000111…
…11100000011010
312212002102002111
411000133200122
5133001441010
612200422534
72040055033
oct500374032
9185072074
1084015130
11434738a1
1224177a4a
1314537ac4
14b22da8a
15759858a
hex501f81a

84015130 has 8 divisors (see below), whose sum is σ = 151227252. Its totient is φ = 33606048.

The previous prime is 84015103. The next prime is 84015137. The reversal of 84015130 is 3151048.

It can be written as a sum of positive squares in 2 ways, for example, as 67782289 + 16232841 = 8233^2 + 4029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (84015137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4200747 + ... + 4200766.

Almost surely, 284015130 is an apocalyptic number.

84015130 is a deficient number, since it is larger than the sum of its proper divisors (67212122).

84015130 is a wasteful number, since it uses less digits than its factorization.

84015130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401520.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 84015130 is about 9165.9767619169. The cubic root of 84015130 is about 437.9782069041.

Adding to 84015130 its reverse (3151048), we get a palindrome (87166178).

It can be divided in two parts, 8401 and 5130, that added together give a palindrome (13531).

The spelling of 84015130 in words is "eighty-four million, fifteen thousand, one hundred thirty".

Divisors: 1 2 5 10 8401513 16803026 42007565 84015130