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20430344614 = 210215172307
BaseRepresentation
bin10011000001101111…
…100101000110100110
31221201211022001002011
4103001233211012212
5313320132011424
613215141104434
71322166030631
oct230157450646
957654261064
1020430344614
118734440329
123b620b811a
131c078b2014
14dbb508c18
157e8925694
hex4c1be51a6

20430344614 has 4 divisors (see below), whose sum is σ = 30645516924. Its totient is φ = 10215172306.

The previous prime is 20430344591. The next prime is 20430344651. The reversal of 20430344614 is 41644303402.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 5107586152 + ... + 5107586155.

It is an arithmetic number, because the mean of its divisors is an integer number (7661379231).

Almost surely, 220430344614 is an apocalyptic number.

20430344614 is a deficient number, since it is larger than the sum of its proper divisors (10215172310).

20430344614 is a wasteful number, since it uses less digits than its factorization.

20430344614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215172309.

The product of its (nonzero) digits is 27648, while the sum is 31.

The spelling of 20430344614 in words is "twenty billion, four hundred thirty million, three hundred forty-four thousand, six hundred fourteen".

Divisors: 1 2 10215172307 20430344614