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20179075050 = 23352103145121
BaseRepresentation
bin10010110010110001…
…000011111111101010
31221002022111020001000
4102302301003333222
5312311320400200
613134203335430
71313025210411
oct226261037752
957068436030
1020179075050
11861561a832
123ab1b21576
131b978167c4
14d95dbc478
157d1840300
hex4b2c43fea

20179075050 has 96 divisors (see below), whose sum is σ = 56144799360. Its totient is φ = 5328806400.

The previous prime is 20179075031. The next prime is 20179075051. The reversal of 20179075050 is 5057097102.

It is a junction number, because it is equal to n+sod(n) for n = 20179074996 and 20179075014.

It is not an unprimeable number, because it can be changed into a prime (20179075051) 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 47 ways as a sum of consecutive naturals, for example, 66490 + ... + 211610.

It is an arithmetic number, because the mean of its divisors is an integer number (584841660).

Almost surely, 220179075050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20179075050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28072399680).

20179075050 is an abundant number, since it is smaller than the sum of its proper divisors (35965724310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20179075050 is a wasteful number, since it uses less digits than its factorization.

20179075050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145245 (or 145234 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The spelling of 20179075050 in words is "twenty billion, one hundred seventy-nine million, seventy-five thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 103 135 150 206 225 270 309 450 515 618 675 927 1030 1350 1545 1854 2575 2781 3090 4635 5150 5562 7725 9270 13905 15450 23175 27810 46350 69525 139050 145121 290242 435363 725605 870726 1306089 1451210 2176815 2612178 3628025 3918267 4353630 6530445 7256050 7836534 10884075 13060890 14947463 19591335 21768150 29894926 32652225 39182670 44842389 65304450 74737315 89684778 97956675 134527167 149474630 195913350 224211945 269054334 373686575 403581501 448423890 672635835 747373150 807163002 1121059725 1345271670 2017907505 2242119450 3363179175 4035815010 6726358350 10089537525 20179075050