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20109283730 = 255783347731
BaseRepresentation
bin10010101110100110…
…110101000110010010
31220220110011110100022
4102232212311012102
5312140434034410
613123231423442
71311220043234
oct225646650622
956813143308
1020109283730
11858a191558
123a92684b82
131b8621bc73
14d8aa12254
157ca656455
hex4ae9b5192

20109283730 has 16 divisors (see below), whose sum is σ = 36203073984. Its totient is φ = 8042299440.

The previous prime is 20109283681. The next prime is 20109283751. The reversal of 20109283730 is 3738290102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116036 + ... + 231695.

It is an arithmetic number, because the mean of its divisors is an integer number (2262692124).

Almost surely, 220109283730 is an apocalyptic number.

20109283730 is a deficient number, since it is larger than the sum of its proper divisors (16093790254).

20109283730 is a wasteful number, since it uses less digits than its factorization.

20109283730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353521.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 20109283730 in words is "twenty billion, one hundred nine million, two hundred eighty-three thousand, seven hundred thirty".

Divisors: 1 2 5 10 5783 11566 28915 57830 347731 695462 1738655 3477310 2010928373 4021856746 10054641865 20109283730