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40322143 is a prime number
BaseRepresentation
bin1001100111010…
…0010001011111
32210212120120201
42121310101133
540310302033
64000124331
7666506161
oct231642137
983776521
1040322143
1120840694
12116066a7
13847a374
1454d8931
15381747d
hex267445f

40322143 has 2 divisors, whose sum is σ = 40322144. Its totient is φ = 40322142.

The previous prime is 40322137. The next prime is 40322167. The reversal of 40322143 is 34122304.

Adding to 40322143 its reverse (34122304), we get a palindrome (74444447).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40322143 is a prime.

It is a super-2 number, since 2×403221432 = 3251750432224898, which contains 22 as substring.

It is equal to p2452105 and since 40322143 and 2452105 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40322143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40322173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161071 + 20161072.

It is an arithmetic number, because the mean of its divisors is an integer number (20161072).

Almost surely, 240322143 is an apocalyptic number.

40322143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40322143 is an equidigital number, since it uses as much as digits as its factorization.

40322143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40322143 is about 6349.9718897016. The cubic root of 40322143 is about 342.9108302915.

The spelling of 40322143 in words is "forty million, three hundred twenty-two thousand, one hundred forty-three".