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84630648 = 2336752631
BaseRepresentation
bin1010000101101…
…01110001111000
312220020200102110
411002311301320
5133131140043
612221532320
72045230404
oct502656170
9186220373
1084630648
1143854293
12244140a0
13146c200b
14b350104
15766ab33
hex50b5c78

84630648 has 32 divisors (see below), whose sum is σ = 214738560. Its totient is φ = 27788640.

The previous prime is 84630647. The next prime is 84630653. The reversal of 84630648 is 84603648.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84630643) 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 7 ways as a sum of consecutive naturals, for example, 24708 + ... + 27923.

It is an arithmetic number, because the mean of its divisors is an integer number (6710580).

Almost surely, 284630648 is an apocalyptic number.

It is an amenable number.

84630648 is an abundant number, since it is smaller than the sum of its proper divisors (130107912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84630648 is a wasteful number, since it uses less digits than its factorization.

84630648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52707 (or 52703 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 84630648 is about 9199.4917250900. The cubic root of 84630648 is about 439.0451884859.

Subtracting from 84630648 its reverse (84603648), we obtain a cube (27000 = 303).

The spelling of 84630648 in words is "eighty-four million, six hundred thirty thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 67 134 201 268 402 536 804 1608 52631 105262 157893 210524 315786 421048 631572 1263144 3526277 7052554 10578831 14105108 21157662 28210216 42315324 84630648