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82984020 = 223571910399
BaseRepresentation
bin1001111001000…
…11110001010100
312210011000200020
410330203301110
5132220442040
612122345140
72025231630
oct474436124
9183130606
1082984020
114292a139
122395b1b0
1314266692
14b041dc0
157442cd0
hex4f23c54

82984020 has 96 divisors (see below), whose sum is σ = 279552000. Its totient is φ = 17967744.

The previous prime is 82983997. The next prime is 82984043. The reversal of 82984020 is 2048928.

It is an interprime number because it is at equal distance from previous prime (82983997) and next prime (82984043).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2781 + ... + 13179.

It is an arithmetic number, because the mean of its divisors is an integer number (2912000).

Almost surely, 282984020 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 82984020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139776000).

82984020 is an abundant number, since it is smaller than the sum of its proper divisors (196567980).

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

82984020 is a wasteful number, since it uses less digits than its factorization.

82984020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437 (or 10435 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 82984020 is about 9109.5565204899. The cubic root of 82984020 is about 436.1790710156.

The spelling of 82984020 in words is "eighty-two million, nine hundred eighty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 380 399 420 532 570 665 798 1140 1330 1596 1995 2660 3990 7980 10399 20798 31197 41596 51995 62394 72793 103990 124788 145586 155985 197581 207980 218379 291172 311970 363965 395162 436758 592743 623940 727930 790324 873516 987905 1091895 1185486 1383067 1455860 1975810 2183790 2370972 2766134 2963715 3951620 4149201 4367580 5532268 5927430 6915335 8298402 11854860 13830670 16596804 20746005 27661340 41492010 82984020