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20579873008 = 243773947041
BaseRepresentation
bin10011001010101001…
…111111000011110000
31222010020122212110211
4103022221333003300
5314121421414013
613242042033504
71325663014522
oct231251770360
958106585424
1020579873008
118800890212
123ba41a8894
131c2c877366
14dd330da12
15806b1023d
hex4caa7f0f0

20579873008 has 40 divisors (see below), whose sum is σ = 41007452240. Its totient is φ = 9998069760.

The previous prime is 20579872993. The next prime is 20579873011. The reversal of 20579873008 is 80037897502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413968 + ... + 461008.

It is an arithmetic number, because the mean of its divisors is an integer number (1025186306).

Almost surely, 220579873008 is an apocalyptic number.

It is an amenable number.

20579873008 is a deficient number, since it is larger than the sum of its proper divisors (20427579232).

20579873008 is a wasteful number, since it uses less digits than its factorization.

20579873008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47825 (or 47819 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 20579873008 in words is "twenty billion, five hundred seventy-nine million, eight hundred seventy-three thousand, eight".

Divisors: 1 2 4 8 16 37 74 148 296 592 739 1478 2956 5912 11824 27343 47041 54686 94082 109372 188164 218744 376328 437488 752656 1740517 3481034 6962068 13924136 27848272 34763299 69526598 139053196 278106392 556212784 1286242063 2572484126 5144968252 10289936504 20579873008