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4343040 = 283251329
BaseRepresentation
bin10000100100010100000000
322011122112100
4100210110000
52102434130
6233030400
751625632
oct20442400
98148470
104343040
1124a6a99
121555400
13b90a60
14810a52
155abc60
hex424500

4343040 has 216 divisors, whose sum is σ = 16740360. Its totient is φ = 1032192.

The previous prime is 4343029. The next prime is 4343057. The reversal of 4343040 is 403434.

4343040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 4260096 = 288^2 + 2064^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 149746 + ... + 149774.

Almost surely, 24343040 is an apocalyptic number.

4343040 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 4343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8370180).

4343040 is an abundant number, since it is smaller than the sum of its proper divisors (12397320).

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

4343040 is a wasteful number, since it uses less digits than its factorization.

4343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 4343040 is about 2083.9961612249. The cubic root of 4343040 is about 163.1540816605.

Adding to 4343040 its reverse (403434), we get a palindrome (4746474).

The spelling of 4343040 in words is "four million, three hundred forty-three thousand, forty".