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2159080 = 235711701
BaseRepresentation
bin1000001111000111101000
311001200200221
420033013220
51023042310
6114135424
724231460
oct10170750
94050627
102159080
111245170
12881574
135a7981
14402ba0
152c9ada
hex20f1e8

2159080 has 64 divisors (see below), whose sum is σ = 6065280. Its totient is φ = 672000.

The previous prime is 2159063. The next prime is 2159081. The reversal of 2159080 is 809512.

It is not an unprimeable number, because it can be changed into a prime (2159081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2730 + ... + 3430.

It is an arithmetic number, because the mean of its divisors is an integer number (94770).

22159080 is an apocalyptic number.

2159080 is a gapful number since it is divisible by the number (20) 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 2159080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032640).

2159080 is an abundant number, since it is smaller than the sum of its proper divisors (3906200).

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

2159080 is a wasteful number, since it uses less digits than its factorization.

2159080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2159080 is about 1469.3808219791. The cubic root of 2159080 is about 129.2477262039.

The spelling of 2159080 in words is "two million, one hundred fifty-nine thousand, eighty".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 88 110 140 154 220 280 308 385 440 616 701 770 1402 1540 2804 3080 3505 4907 5608 7010 7711 9814 14020 15422 19628 24535 28040 30844 38555 39256 49070 53977 61688 77110 98140 107954 154220 196280 215908 269885 308440 431816 539770 1079540 2159080