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82942160 = 2457374003
BaseRepresentation
bin1001111000110…
…01100011010000
312210001220020212
410330121203100
5132213122120
612121423252
72024665610
oct474314320
9183056225
1082942160
1142900744
122393ab28
1314250602
14b030a40
1574356c5
hex4f198d0

82942160 has 80 divisors (see below), whose sum is σ = 226402176. Its totient is φ = 27661824.

The previous prime is 82942121. The next prime is 82942177. The reversal of 82942160 is 6124928.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 18719 + ... + 22721.

Almost surely, 282942160 is an apocalyptic number.

82942160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82942160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113201088).

82942160 is an abundant number, since it is smaller than the sum of its proper divisors (143460016).

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

82942160 is a wasteful number, since it uses less digits than its factorization.

82942160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 82942160 is about 9107.2586435217. The cubic root of 82942160 is about 436.1057174277.

The spelling of 82942160 in words is "eighty-two million, nine hundred forty-two thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 37 40 56 70 74 80 112 140 148 185 259 280 296 370 518 560 592 740 1036 1295 1480 2072 2590 2960 4003 4144 5180 8006 10360 16012 20015 20720 28021 32024 40030 56042 64048 80060 112084 140105 148111 160120 224168 280210 296222 320240 448336 560420 592444 740555 1036777 1120840 1184888 1481110 2073554 2241680 2369776 2962220 4147108 5183885 5924440 8294216 10367770 11848880 16588432 20735540 41471080 82942160