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20570334143 = 291786339709
BaseRepresentation
bin10011001010000101…
…100110001110111111
31222002120201020121112
4103022011212032333
5314112001143033
613241101352235
71325515645442
oct231205461677
958076636545
1020570334143
1187a6465557
123ba0b6867b
131c2a8b7668
14dd1d49659
15805d78c48
hex4ca1663bf

20570334143 has 8 divisors (see below), whose sum is σ = 21281383200. Its totient is φ = 19859400288.

The previous prime is 20570334139. The next prime is 20570334151. The reversal of 20570334143 is 34143307502.

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

It is a cyclic number.

It is not a de Polignac number, because 20570334143 - 22 = 20570334139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570334643) 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, 498173 + ... + 537881.

It is an arithmetic number, because the mean of its divisors is an integer number (2660172900).

Almost surely, 220570334143 is an apocalyptic number.

20570334143 is a deficient number, since it is larger than the sum of its proper divisors (711049057).

20570334143 is a wasteful number, since it uses less digits than its factorization.

20570334143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57601.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20570334143 in words is "twenty billion, five hundred seventy million, three hundred thirty-four thousand, one hundred forty-three".

Divisors: 1 29 17863 39709 518027 1151561 709321867 20570334143