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84860286 = 2374742989
BaseRepresentation
bin1010000111011…
…01110101111110
312220200100102120
411003231311332
5133211012121
612230503410
72050205040
oct503556576
9186610376
1084860286
11439a0875
1224504b66
13147726b4
14b3ada90
1576b3bc6
hex50edd7e

84860286 has 32 divisors (see below), whose sum is σ = 198097920. Its totient is φ = 23729376.

The previous prime is 84860273. The next prime is 84860287. The reversal of 84860286 is 68206848.

It is a super-3 number, since 3×848602863 (a number of 25 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84860287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19521 + ... + 23468.

It is an arithmetic number, because the mean of its divisors is an integer number (6190560).

Almost surely, 284860286 is an apocalyptic number.

84860286 is an abundant number, since it is smaller than the sum of its proper divisors (113237634).

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

84860286 is a wasteful number, since it uses less digits than its factorization.

84860286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43048.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 84860286 is about 9211.9642856451. The cubic root of 84860286 is about 439.4419336701.

The spelling of 84860286 in words is "eighty-four million, eight hundred sixty thousand, two hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 282 329 658 987 1974 42989 85978 128967 257934 300923 601846 902769 1805538 2020483 4040966 6061449 12122898 14143381 28286762 42430143 84860286