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20574092797 = 353340717107
BaseRepresentation
bin10011001010010011…
…111011110111111101
31222002211210012111221
4103022103323313331
5314113431432142
613241314113341
71325562621556
oct231223736775
958084705457
1020574092797
1187a85a2485
123ba227b851
131c2b60240b
14dd264732d
1580636c767
hex4ca4fbdfd

20574092797 has 8 divisors (see below), whose sum is σ = 20639638656. Its totient is φ = 20508588672.

The previous prime is 20574092761. The next prime is 20574092813. The reversal of 20574092797 is 79729047502.

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 20574092797 - 211 = 20574090749 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 (20574092197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194118 + ... + 1211224.

It is an arithmetic number, because the mean of its divisors is an integer number (2579954832).

Almost surely, 220574092797 is an apocalyptic number.

It is an amenable number.

20574092797 is a deficient number, since it is larger than the sum of its proper divisors (65545859).

20574092797 is a wasteful number, since it uses less digits than its factorization.

20574092797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20867.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 20574092797 in words is "twenty billion, five hundred seventy-four million, ninety-two thousand, seven hundred ninety-seven".

Divisors: 1 353 3407 17107 1202671 6038771 58283549 20574092797