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1840229013 = 3787629953
BaseRepresentation
bin110110110101111…
…1010101010010101
311202020201022122010
41231223322222111
512232044312023
6502334254433
763413455110
oct15553725225
94666638563
101840229013
11864841327
12434357419
13234336c0c
14136589577
15ab853093
hex6dafaa95

1840229013 has 8 divisors (see below), whose sum is σ = 2804158528. Its totient is φ = 1051559424.

The previous prime is 1840228987. The next prime is 1840229033. The reversal of 1840229013 is 3109220481.

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

It is not a de Polignac number, because 1840229013 - 225 = 1806674581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840229033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43814956 + ... + 43814997.

It is an arithmetic number, because the mean of its divisors is an integer number (350519816).

Almost surely, 21840229013 is an apocalyptic number.

It is an amenable number.

1840229013 is a deficient number, since it is larger than the sum of its proper divisors (963929515).

1840229013 is an equidigital number, since it uses as much as digits as its factorization.

1840229013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87629963.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1840229013 is about 42897.8905425430. The cubic root of 1840229013 is about 1225.4359715464.

Adding to 1840229013 its reverse (3109220481), we get a palindrome (4949449494).

The spelling of 1840229013 in words is "one billion, eight hundred forty million, two hundred twenty-nine thousand, thirteen".

Divisors: 1 3 7 21 87629953 262889859 613409671 1840229013