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2149080 = 233517909
BaseRepresentation
bin1000001100101011011000
311001011222120
420030223120
51022232310
6114021240
724160353
oct10145330
94034876
102149080
1112386aa
12877820
135a325b
143dd29a
152c6b70
hex20cad8

2149080 has 32 divisors (see below), whose sum is σ = 6447600. Its totient is φ = 573056.

The previous prime is 2149067. The next prime is 2149087. The reversal of 2149080 is 809412.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2149080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8835 + ... + 9074.

22149080 is an apocalyptic number.

2149080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149080 is an abundant number, since it is smaller than the sum of its proper divisors (4298520).

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

2149080 is a wasteful number, since it uses less digits than its factorization.

2149080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17923 (or 17919 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2149080 is about 1465.9740788977. The cubic root of 2149080 is about 129.0478759859.

The spelling of 2149080 in words is "two million, one hundred forty-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 17909 35818 53727 71636 89545 107454 143272 179090 214908 268635 358180 429816 537270 716360 1074540 2149080