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40015211 is a prime number
BaseRepresentation
bin1001100010100…
…1010101101011
32210021222112212
42120221111223
540220441321
63545355335
7664060265
oct230512553
983258485
1040015211
1120651025
1211498b4b
1383a0752
145458b35
1537a655b
hex262956b

40015211 has 2 divisors, whose sum is σ = 40015212. Its totient is φ = 40015210.

The previous prime is 40015177. The next prime is 40015219. The reversal of 40015211 is 11251004.

40015211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40015211 is a prime.

It is a super-2 number, since 2×400152112 = 3202434222749042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40015219) 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 as a sum of consecutive naturals, namely, 20007605 + 20007606.

It is an arithmetic number, because the mean of its divisors is an integer number (20007606).

Almost surely, 240015211 is an apocalyptic number.

40015211 is a deficient number, since it is larger than the sum of its proper divisors (1).

40015211 is an equidigital number, since it uses as much as digits as its factorization.

40015211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 40015211 is about 6325.7577411722. The cubic root of 40015211 is about 342.0385345816.

Adding to 40015211 its reverse (11251004), we get a palindrome (51266215).

The spelling of 40015211 in words is "forty million, fifteen thousand, two hundred eleven".