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40202443 = 312634931
BaseRepresentation
bin1001100101011…
…1000011001011
32210122111101101
42121113003023
540242434233
63553402231
7665500201
oct231270313
983574341
1040202443
1120769766
1211569377
138437a38
1454a7071
1537e1c7d
hex26570cb

40202443 has 8 divisors (see below), whose sum is σ = 41665536. Its totient is φ = 38749800.

The previous prime is 40202441. The next prime is 40202447. The reversal of 40202443 is 34420204.

40202443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40202443 - 21 = 40202441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40202443.

It is not an unprimeable number, because it can be changed into a prime (40202441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5688 + ... + 10618.

It is an arithmetic number, because the mean of its divisors is an integer number (5208192).

Almost surely, 240202443 is an apocalyptic number.

40202443 is a deficient number, since it is larger than the sum of its proper divisors (1463093).

40202443 is a wasteful number, since it uses less digits than its factorization.

40202443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40202443 is about 6340.5396458030. The cubic root of 40202443 is about 342.5711731606.

Adding to 40202443 its reverse (34420204), we get a palindrome (74622647).

The spelling of 40202443 in words is "forty million, two hundred two thousand, four hundred forty-three".

Divisors: 1 31 263 4931 8153 152861 1296853 40202443