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8973180020 = 2257316730859
BaseRepresentation
bin10000101101101011…
…11101110001110100
3212011100121202220202
420112311331301310
5121334113230040
64042222220032
7435235525460
oct102665756164
925140552822
108973180020
113895142a62
1218a5124618
13b0004c89c
14611a334a0
15377b80015
hex216d7dc74

8973180020 has 96 divisors (see below), whose sum is σ = 22562856960. Its totient is φ = 2932744320.

The previous prime is 8973180011. The next prime is 8973180037. The reversal of 8973180020 is 200813798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275351 + ... + 306209.

It is an arithmetic number, because the mean of its divisors is an integer number (235029760).

Almost surely, 28973180020 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 8973180020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11281428480).

8973180020 is an abundant number, since it is smaller than the sum of its proper divisors (13589676940).

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

8973180020 is a wasteful number, since it uses less digits than its factorization.

8973180020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30973 (or 30971 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 8973180020 is about 94726.8706334164. The cubic root of 8973180020 is about 2078.0155521517.

The spelling of 8973180020 in words is "eight billion, nine hundred seventy-three million, one hundred eighty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 67 70 124 134 140 155 217 268 310 335 434 469 620 670 868 938 1085 1340 1876 2077 2170 2345 4154 4340 4690 8308 9380 10385 14539 20770 29078 30859 41540 58156 61718 72695 123436 145390 154295 216013 290780 308590 432026 617180 864052 956629 1080065 1913258 2067553 2160130 3826516 4135106 4320260 4783145 6696403 8270212 9566290 10337765 13392806 14472871 19132580 20675530 26785612 28945742 33482015 41351060 57891484 64094143 66964030 72364355 128188286 133928060 144728710 256376572 289457420 320470715 448659001 640941430 897318002 1281882860 1794636004 2243295005 4486590010 8973180020