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84112620 = 22351973783
BaseRepresentation
bin1010000001101…
…11010011101100
312212021100211020
411000313103230
5133013100440
612202454140
72040642204
oct500672354
9185240736
1084112620
1143530069
1224204350
13145702a7
14b257404
1575b73d0
hex50374ec

84112620 has 48 divisors (see below), whose sum is σ = 247914240. Its totient is φ = 21249216.

The previous prime is 84112577. The next prime is 84112621. The reversal of 84112620 is 2621148.

84112620 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

84112620 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (84112621) 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, 35752 + ... + 38031.

It is an arithmetic number, because the mean of its divisors is an integer number (5164880).

Almost surely, 284112620 is an apocalyptic number.

It is an amenable number.

84112620 is an abundant number, since it is smaller than the sum of its proper divisors (163801620).

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

84112620 is a wasteful number, since it uses less digits than its factorization.

84112620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73814 (or 73812 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 84112620 is about 9171.2932566787. The cubic root of 84112620 is about 438.1475493803.

Adding to 84112620 its reverse (2621148), we get a palindrome (86733768).

The spelling of 84112620 in words is "eighty-four million, one hundred twelve thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 73783 147566 221349 295132 368915 442698 737830 885396 1106745 1401877 1475660 2213490 2803754 4205631 4426980 5607508 7009385 8411262 14018770 16822524 21028155 28037540 42056310 84112620