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20005303050 = 235521646527
BaseRepresentation
bin10010101000011010…
…001011001100001010
31220122012111200200000
4102220122023030022
5311432324144200
613105035023430
71305515161455
oct225032131412
956565450600
1020005303050
118536521307
123a6389ab76
131b6a813635
14d7aca649c
157c1467300
hex4a868b30a

20005303050 has 72 divisors (see below), whose sum is σ = 55738265856. Its totient is φ = 5334744240.

The previous prime is 20005303049. The next prime is 20005303051. The reversal of 20005303050 is 5030350002.

It is an interprime number because it is at equal distance from previous prime (20005303049) and next prime (20005303051).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20005303051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 811114 + ... + 835413.

Almost surely, 220005303050 is an apocalyptic number.

20005303050 is an abundant number, since it is smaller than the sum of its proper divisors (35732962806).

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

20005303050 is a wasteful number, since it uses less digits than its factorization.

20005303050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646554 (or 1646537 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

Adding to 20005303050 its reverse (5030350002), we get a palindrome (25035653052).

The spelling of 20005303050 in words is "twenty billion, five million, three hundred three thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 243 270 405 450 486 675 810 1215 1350 2025 2430 4050 6075 12150 1646527 3293054 4939581 8232635 9879162 14818743 16465270 24697905 29637486 41163175 44456229 49395810 74093715 82326350 88912458 123489525 133368687 148187430 222281145 246979050 266737374 370468575 400106061 444562290 666843435 740937150 800212122 1111405725 1333686870 2000530305 2222811450 3334217175 4001060610 6668434350 10002651525 20005303050