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2387220 = 2235113617
BaseRepresentation
bin1001000110110100010100
311111021122120
421012310110
51102342340
6123055540
726201553
oct11066424
94437576
102387220
111390610
129715b0
13657774
14461d9a
153224d0
hex246d14

2387220 has 48 divisors (see below), whose sum is σ = 7293888. Its totient is φ = 578560.

The previous prime is 2387207. The next prime is 2387221. The reversal of 2387220 is 227832.

2387220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 212 + 39 + 84 + 72 + 218 + 221 + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2387221) 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, 1149 + ... + 2468.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

22387220 is an apocalyptic number.

2387220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2387220 is an abundant number, since it is smaller than the sum of its proper divisors (4906668).

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

2387220 is a wasteful number, since it uses less digits than its factorization.

2387220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2387220 is about 1545.0631055073. The cubic root of 2387220 is about 133.6485182404.

The spelling of 2387220 in words is "two million, three hundred eighty-seven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 3617 7234 10851 14468 18085 21702 36170 39787 43404 54255 72340 79574 108510 119361 159148 198935 217020 238722 397870 477444 596805 795740 1193610 2387220