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84250868 = 22131620209
BaseRepresentation
bin1010000010110…
…01000011110100
312212112101110112
411001121003310
5133032011433
612205442152
72042056232
oct501310364
9185471415
1084250868
1143614a19
1224270358
13145bb1b0
14b291952
1575e3348
hex50590f4

84250868 has 12 divisors (see below), whose sum is σ = 158780580. Its totient is φ = 38884992.

The previous prime is 84250849. The next prime is 84250897. The reversal of 84250868 is 86805248.

It can be written as a sum of positive squares in 2 ways, for example, as 36336784 + 47914084 = 6028^2 + 6922^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 810053 + ... + 810156.

It is an arithmetic number, because the mean of its divisors is an integer number (13231715).

Almost surely, 284250868 is an apocalyptic number.

It is an amenable number.

84250868 is a deficient number, since it is larger than the sum of its proper divisors (74529712).

84250868 is a wasteful number, since it uses less digits than its factorization.

84250868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620226 (or 1620224 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 84250868 is about 9178.8271581940. The cubic root of 84250868 is about 438.3874652875.

The spelling of 84250868 in words is "eighty-four million, two hundred fifty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 13 26 52 1620209 3240418 6480836 21062717 42125434 84250868