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4243880 = 23517792
BaseRepresentation
bin10000001100000110101000
321222121111202
4100030012220
52041301010
6230543332
751033554
oct20140650
97877452
104243880
112439543
121507b48
13b57894
147c6864
1558c6a5
hex40c1a8

4243880 has 48 divisors (see below), whose sum is σ = 10240020. Its totient is φ = 1577472.

The previous prime is 4243879. The next prime is 4243903. The reversal of 4243880 is 883424.

It can be written as a sum of positive squares in 2 ways, for example, as 4218916 + 24964 = 2054^2 + 158^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53681 + ... + 53759.

Almost surely, 24243880 is an apocalyptic number.

4243880 is a gapful number since it is divisible by the number (40) 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 4243880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5120010).

4243880 is an abundant number, since it is smaller than the sum of its proper divisors (5996140).

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

4243880 is a wasteful number, since it uses less digits than its factorization.

4243880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 4243880 is about 2060.0679600440. The cubic root of 4243880 is about 161.9028020304.

The spelling of 4243880 in words is "four million, two hundred forty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 79 85 136 158 170 316 340 395 632 680 790 1343 1580 2686 3160 5372 6241 6715 10744 12482 13430 24964 26860 31205 49928 53720 62410 106097 124820 212194 249640 424388 530485 848776 1060970 2121940 4243880