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84983620 = 22523239773
BaseRepresentation
bin1010001000010…
…11111101000100
312220220121121111
411010023331010
5133223433440
612233254404
72051230441
oct504137504
9186817544
1084983620
1143a754a7
1224564404
13147b6887
14b4029c8
1576da4ea
hex510bf44

84983620 has 48 divisors (see below), whose sum is σ = 187246080. Its totient is φ = 32337536.

The previous prime is 84983603. The next prime is 84983623. The reversal of 84983620 is 2638948.

It is not an unprimeable number, because it can be changed into a prime (84983623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109554 + ... + 110326.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 284983620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84983620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93623040).

84983620 is an abundant number, since it is smaller than the sum of its proper divisors (102262460).

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

84983620 is a wasteful number, since it uses less digits than its factorization.

84983620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 84983620 is about 9218.6560842674. The cubic root of 84983620 is about 439.6547222367.

The spelling of 84983620 in words is "eighty-four million, nine hundred eighty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 239 460 478 773 956 1195 1546 2390 3092 3865 4780 5497 7730 10994 15460 17779 21988 27485 35558 54970 71116 88895 109940 177790 184747 355580 369494 738988 923735 1847470 3694940 4249181 8498362 16996724 21245905 42491810 84983620