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40060221 = 331142937
BaseRepresentation
bin1001100011010…
…0010100111101
32210101021021220
42120310110331
540223411341
63550343553
7664335435
oct230642475
983337256
1040060221
1120681923
12114babb9
1383b8096
14546b2c5
1537b4a66
hex263453d

40060221 has 8 divisors (see below), whose sum is σ = 53586624. Its totient is φ = 26620320.

The previous prime is 40060213. The next prime is 40060247. The reversal of 40060221 is 12206004.

40060221 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 not a de Polignac number, because 40060221 - 23 = 40060213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40060221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40060271) 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, 20536 + ... + 22401.

It is an arithmetic number, because the mean of its divisors is an integer number (6698328).

Almost surely, 240060221 is an apocalyptic number.

It is an amenable number.

40060221 is a deficient number, since it is larger than the sum of its proper divisors (13526403).

40060221 is a wasteful number, since it uses less digits than its factorization.

40060221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43251.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40060221 is about 6329.3144178497. The cubic root of 40060221 is about 342.1667307133.

Adding to 40060221 its reverse (12206004), we get a palindrome (52266225).

The spelling of 40060221 in words is "forty million, sixty thousand, two hundred twenty-one".

Divisors: 1 3 311 933 42937 128811 13353407 40060221