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84872308 = 2277327449
BaseRepresentation
bin1010000111100…
…00110001110100
312220200221220211
411003300301310
5133211403213
612231035204
72050255063
oct503606164
9186627824
1084872308
11439a9904
122450bb04
1314778001
14b3b41da
1576b753d
hex50f0c74

84872308 has 12 divisors (see below), whose sum is σ = 148724100. Its totient is φ = 42379712.

The previous prime is 84872303. The next prime is 84872351. The reversal of 84872308 is 80327848.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 53758224 = 5578^2 + 7332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84872303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10633 + ... + 16816.

It is an arithmetic number, because the mean of its divisors is an integer number (12393675).

Almost surely, 284872308 is an apocalyptic number.

It is an amenable number.

84872308 is a deficient number, since it is larger than the sum of its proper divisors (63851792).

84872308 is a wasteful number, since it uses less digits than its factorization.

84872308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28226 (or 28224 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 84872308 is about 9212.6167835203. The cubic root of 84872308 is about 439.4626843326.

The spelling of 84872308 in words is "eighty-four million, eight hundred seventy-two thousand, three hundred eight".

Divisors: 1 2 4 773 1546 3092 27449 54898 109796 21218077 42436154 84872308