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84306980 = 22531135979
BaseRepresentation
bin1010000011001…
…10110000100100
312212122020102202
411001212300210
5133040310410
612210554032
72042411642
oct501466044
9185566382
1084306980
114365309a
1224298918
131460a8b4
14b2a8192
157604ca5
hex5066c24

84306980 has 24 divisors (see below), whose sum is σ = 182757120. Its totient is φ = 32634720.

The previous prime is 84306977. The next prime is 84307057. The reversal of 84306980 is 8960348.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67370 + ... + 68609.

It is an arithmetic number, because the mean of its divisors is an integer number (7614880).

Almost surely, 284306980 is an apocalyptic number.

It is an amenable number.

84306980 is an abundant number, since it is smaller than the sum of its proper divisors (98450140).

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

84306980 is a wasteful number, since it uses less digits than its factorization.

84306980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136019 (or 136017 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 84306980 is about 9181.8832490944. The cubic root of 84306980 is about 438.4847673056.

The spelling of 84306980 in words is "eighty-four million, three hundred six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 135979 271958 543916 679895 1359790 2719580 4215349 8430698 16861396 21076745 42153490 84306980