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20301049092 = 223191032393617
BaseRepresentation
bin10010111010000010…
…010110110100000100
31221101211000010222010
4102322002112310010
5313034032032332
613154241534220
71316036033022
oct227202266404
957354003863
1020301049092
11867845a725
123b26944370
131bb6b820ac
14da828d712
157dc3d59cc
hex4ba096d04

20301049092 has 96 divisors (see below), whose sum is σ = 50570956800. Its totient is φ = 6320305152.

The previous prime is 20301049051. The next prime is 20301049127. The reversal of 20301049092 is 29094010302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5610868 + ... + 5614484.

It is an arithmetic number, because the mean of its divisors is an integer number (526780800).

Almost surely, 220301049092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301049092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25285478400).

20301049092 is an abundant number, since it is smaller than the sum of its proper divisors (30269907708).

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

20301049092 is a wasteful number, since it uses less digits than its factorization.

20301049092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 20301049092 its reverse (29094010302), we get a palindrome (49395059394).

The spelling of 20301049092 in words is "twenty billion, three hundred one million, forty-nine thousand, ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 103 114 206 228 239 309 412 478 618 717 956 1236 1434 1957 2868 3617 3914 4541 5871 7234 7828 9082 10851 11742 13623 14468 18164 21702 23484 24617 27246 43404 49234 54492 68723 73851 98468 137446 147702 206169 274892 295404 372551 412338 467723 745102 824676 864463 935446 1117653 1403169 1490204 1728926 1870892 2235306 2593389 2806338 3457852 4470612 5186778 5612676 7078469 10373556 14156938 16424797 21235407 28313876 32849594 42470814 49274391 65699188 84941628 89039689 98548782 178079378 197097564 267119067 356158756 534238134 1068476268 1691754091 3383508182 5075262273 6767016364 10150524546 20301049092