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84274386 = 23719105607
BaseRepresentation
bin1010000010111…
…10110011010010
312212120120201120
411001132303102
5133033240021
612210143110
72042214630
oct501366322
9185516646
1084274386
1143630659
1224281a96
13145c8b01
14b29a350
1575ea2c6
hex505ecd2

84274386 has 32 divisors (see below), whose sum is σ = 202767360. Its totient is φ = 22810896.

The previous prime is 84274381. The next prime is 84274387. The reversal of 84274386 is 68347248.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (84274381) 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 15 ways as a sum of consecutive naturals, for example, 52006 + ... + 53601.

It is an arithmetic number, because the mean of its divisors is an integer number (6336480).

Almost surely, 284274386 is an apocalyptic number.

84274386 is an abundant number, since it is smaller than the sum of its proper divisors (118492974).

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

84274386 is a wasteful number, since it uses less digits than its factorization.

84274386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105638.

The product of its digits is 258048, while the sum is 42.

The square root of 84274386 is about 9180.1081692974. The cubic root of 84274386 is about 438.4282523539.

The spelling of 84274386 in words is "eighty-four million, two hundred seventy-four thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 105607 211214 316821 633642 739249 1478498 2006533 2217747 4013066 4435494 6019599 12039198 14045731 28091462 42137193 84274386