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84130980 = 223510113883
BaseRepresentation
bin1010000001110…
…11110010100100
312212022022000020
411000323302210
5133014142410
612203115140
72041046553
oct500736244
9185268006
1084130980
114354293a
1224212ab0
131457875b
14b25dd9a
1575bca70
hex503bca4

84130980 has 48 divisors (see below), whose sum is σ = 237916224. Its totient is φ = 22211200.

The previous prime is 84130979. The next prime is 84131027. The reversal of 84130980 is 8903148.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (4956588).

Almost surely, 284130980 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 84130980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118958112).

84130980 is an abundant number, since it is smaller than the sum of its proper divisors (153785244).

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

84130980 is a wasteful number, since it uses less digits than its factorization.

84130980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996 (or 13994 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 84130980 is about 9172.2941514105. The cubic root of 84130980 is about 438.1794264984.

The spelling of 84130980 in words is "eighty-four million, one hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 101 202 303 404 505 606 1010 1212 1515 2020 3030 6060 13883 27766 41649 55532 69415 83298 138830 166596 208245 277660 416490 832980 1402183 2804366 4206549 5608732 7010915 8413098 14021830 16826196 21032745 28043660 42065490 84130980