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2138160 = 243559151
BaseRepresentation
bin1000001010000000110000
311000122000010
420022000300
51021410120
6113454520
724113463
oct10120060
94018003
102138160
111230482
12871440
1359b2ab
143d92da
152c37e0
hex20a030

2138160 has 80 divisors (see below), whose sum is σ = 6785280. Its totient is φ = 556800.

The previous prime is 2138137. The next prime is 2138167. The reversal of 2138160 is 618312.

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

It is not an unprimeable number, because it can be changed into a prime (2138167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14085 + ... + 14235.

It is an arithmetic number, because the mean of its divisors is an integer number (84816).

22138160 is an apocalyptic number.

2138160 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 2138160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3392640).

2138160 is an abundant number, since it is smaller than the sum of its proper divisors (4647120).

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

2138160 is a wasteful number, since it uses less digits than its factorization.

2138160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2138160 is about 1462.2448495379. The cubic root of 2138160 is about 128.8289301422.

The spelling of 2138160 in words is "two million, one hundred thirty-eight thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 59 60 80 118 120 151 177 236 240 295 302 354 453 472 590 604 708 755 885 906 944 1180 1208 1416 1510 1770 1812 2265 2360 2416 2832 3020 3540 3624 4530 4720 6040 7080 7248 8909 9060 12080 14160 17818 18120 26727 35636 36240 44545 53454 71272 89090 106908 133635 142544 178180 213816 267270 356360 427632 534540 712720 1069080 2138160