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20424507103 = 7111367730139
BaseRepresentation
bin10011000001011001…
…010011111011011111
31221201102022110112001
4103001121103323133
5313312133211403
613214412023131
71322065305640
oct230131237337
957642273461
1020424507103
118731113540
123b60161aa7
131c06619c80
14dba8296c7
157e8170c1d
hex4c1653edf

20424507103 has 32 divisors (see below), whose sum is σ = 27464532480. Its totient is φ = 14668767360.

The previous prime is 20424507101. The next prime is 20424507119. The reversal of 20424507103 is 30170542402.

It is not a de Polignac number, because 20424507103 - 21 = 20424507101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424507101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662608 + ... + 692746.

It is an arithmetic number, because the mean of its divisors is an integer number (858266640).

Almost surely, 220424507103 is an apocalyptic number.

20424507103 is a deficient number, since it is larger than the sum of its proper divisors (7040025377).

20424507103 is a wasteful number, since it uses less digits than its factorization.

20424507103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30847.

The product of its (nonzero) digits is 6720, while the sum is 28.

The spelling of 20424507103 in words is "twenty billion, four hundred twenty-four million, five hundred seven thousand, one hundred three".

Divisors: 1 7 11 13 77 91 143 677 1001 4739 7447 8801 30139 52129 61607 96811 210973 331529 391807 677677 2320703 2742649 4309877 20404103 30169139 142828721 224445133 265253339 1571115931 1856773373 2917786729 20424507103