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20526304044 = 22343831094397
BaseRepresentation
bin10011000111011101…
…101000101100101100
31221222111212021200010
4103013131220230230
5314014213212134
613232445533220
71324442464011
oct230735505454
957874767603
1020526304044
118783622044
123b8a274210
131c2173c64c
14dca167708
1580207cce9
hex4c7768b2c

20526304044 has 96 divisors (see below), whose sum is σ = 50065424640. Its totient is φ = 6540403968.

The previous prime is 20526304039. The next prime is 20526304061. The reversal of 20526304044 is 44040362502.

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, 4666054 + ... + 4670450.

It is an arithmetic number, because the mean of its divisors is an integer number (521514840).

Almost surely, 220526304044 is an apocalyptic number.

It is an amenable number.

20526304044 is an abundant number, since it is smaller than the sum of its proper divisors (29539120596).

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

20526304044 is a wasteful number, since it uses less digits than its factorization.

20526304044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639 (or 4637 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20526304044 its reverse (44040362502), we get a palindrome (64566666546).

The spelling of 20526304044 in words is "twenty billion, five hundred twenty-six million, three hundred four thousand, forty-four".

Divisors: 1 2 3 4 6 12 43 83 86 109 129 166 172 218 249 258 327 332 436 498 516 654 996 1308 3569 4397 4687 7138 8794 9047 9374 10707 13191 14061 14276 17588 18094 18748 21414 26382 27141 28122 36188 42828 52764 54282 56244 108564 189071 364951 378142 389021 479273 567213 729902 756284 778042 958546 1094853 1134426 1167063 1437819 1459804 1556084 1917092 2189706 2268852 2334126 2875638 4379412 4668252 5751276 15692893 20608739 31385786 39779659 41217478 47078679 61826217 62771572 79559318 82434956 94157358 119338977 123652434 159118636 188314716 238677954 247304868 477355908 1710525337 3421050674 5131576011 6842101348 10263152022 20526304044