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2162620 = 225108131
BaseRepresentation
bin1000001111111110111100
311001212120001
420033332330
51023200440
6114204044
724245005
oct10177674
94055501
102162620
111247899
12883624
135a9475
144041ac
152cab9a
hex20ffbc

2162620 has 12 divisors (see below), whose sum is σ = 4541544. Its totient is φ = 865040.

The previous prime is 2162603. The next prime is 2162623. The reversal of 2162620 is 262612.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54046 + ... + 54085.

It is an arithmetic number, because the mean of its divisors is an integer number (378462).

22162620 is an apocalyptic number.

2162620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2162620 is an abundant number, since it is smaller than the sum of its proper divisors (2378924).

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

2162620 is a wasteful number, since it uses less digits than its factorization.

2162620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108140 (or 108138 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2162620 is about 1470.5849176433. The cubic root of 2162620 is about 129.3183252740.

The spelling of 2162620 in words is "two million, one hundred sixty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 108131 216262 432524 540655 1081310 2162620