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20314722747 = 31117312814157
BaseRepresentation
bin10010111010110110…
…100001000110111011
31221102202201211200210
4102322312201012323
5313101032111442
613155451002203
71316263202634
oct227266410673
957382654623
1020314722747
118685149970
123b2b439363
131bb995bb07
14daa00c88b
157dd6d719c
hex4bada11bb

20314722747 has 64 divisors (see below), whose sum is σ = 32418828288. Its totient is φ = 11171328000.

The previous prime is 20314722719. The next prime is 20314722761. The reversal of 20314722747 is 74722741302.

It is not a de Polignac number, because 20314722747 - 27 = 20314722619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20314722797) 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 63 ways as a sum of consecutive naturals, for example, 4884793 + ... + 4888949.

It is an arithmetic number, because the mean of its divisors is an integer number (506544192).

Almost surely, 220314722747 is an apocalyptic number.

20314722747 is a deficient number, since it is larger than the sum of its proper divisors (12104105541).

20314722747 is a wasteful number, since it uses less digits than its factorization.

20314722747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 131712, while the sum is 39.

The spelling of 20314722747 in words is "twenty billion, three hundred fourteen million, seven hundred twenty-two thousand, seven hundred forty-seven".

Divisors: 1 3 11 17 31 33 51 93 187 281 341 527 561 843 1023 1581 3091 4157 4777 5797 8711 9273 12471 14331 17391 26133 45727 52547 70669 95821 128867 137181 148087 157641 212007 287463 386601 444261 777359 1168117 1417537 1628957 2190739 2332077 3504351 4252611 4886871 6572217 12849287 19857989 24098129 36211627 38547861 59573967 72294387 108634881 218437879 398327897 615597659 655313637 1194983691 1846792977 6771574249 20314722747