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1906011841 is a prime number
BaseRepresentation
bin111000110011011…
…0110111011000001
311220211111102201011
41301212312323001
512400414334331
6513044240521
765142555556
oct16146667301
94824442634
101906011841
118989919a8
124523a0141
13244b5a076
141411d0a2d
15b24e93b1
hex719b6ec1

1906011841 has 2 divisors, whose sum is σ = 1906011842. Its totient is φ = 1906011840.

The previous prime is 1906011799. The next prime is 1906011853. The reversal of 1906011841 is 1481106091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1720507441 + 185504400 = 41479^2 + 13620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1906011841 - 27 = 1906011713 is a prime.

It is a super-2 number, since 2×19060118412 = 7265762276064418562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1906011881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953005920 + 953005921.

It is an arithmetic number, because the mean of its divisors is an integer number (953005921).

Almost surely, 21906011841 is an apocalyptic number.

It is an amenable number.

1906011841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906011841 is an equidigital number, since it uses as much as digits as its factorization.

1906011841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 1906011841 is about 43657.8955173059. The cubic root of 1906011841 is about 1239.8672770276.

The spelling of 1906011841 in words is "one billion, nine hundred six million, eleven thousand, eight hundred forty-one".