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2160872 = 23747821
BaseRepresentation
bin1000001111100011101000
311001210011022
420033203220
51023121442
6114152012
724236630
oct10174350
94053138
102160872
11124654a
12882608
135a872c
144036c0
152ca3d2
hex20f8e8

2160872 has 32 divisors (see below), whose sum is σ = 4734720. Its totient is φ = 905280.

The previous prime is 2160857. The next prime is 2160881. The reversal of 2160872 is 2780612.

It is a d-powerful number, because it can be written as 27 + 1 + 66 + 0 + 87 + 75 + 27 .

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, 2222 + ... + 3042.

It is an arithmetic number, because the mean of its divisors is an integer number (147960).

22160872 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 2160872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2367360).

2160872 is an abundant number, since it is smaller than the sum of its proper divisors (2573848).

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

2160872 is a wasteful number, since it uses less digits than its factorization.

2160872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2160872 is about 1469.9904761596. The cubic root of 2160872 is about 129.2834741269.

The spelling of 2160872 in words is "two million, one hundred sixty thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 658 821 1316 1642 2632 3284 5747 6568 11494 22988 38587 45976 77174 154348 270109 308696 540218 1080436 2160872