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20012044234 = 27213193126669
BaseRepresentation
bin10010101000110011…
…111000111111001010
31220122200012011211111
4102220303320333022
5311441040403414
613105435320534
71305626366200
oct225063707712
956580164744
1020012044234
11853a306036
123a65bb014a
131b6c033ac0
14d7bb3d070
157c1d498c4
hex4a8cf8fca

20012044234 has 96 divisors (see below), whose sum is σ = 40862707200. Its totient is φ = 7257962880.

The previous prime is 20012044231. The next prime is 20012044243. The reversal of 20012044234 is 43244021002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20012044231) 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, 737052 + ... + 763720.

It is an arithmetic number, because the mean of its divisors is an integer number (425653200).

Almost surely, 220012044234 is an apocalyptic number.

20012044234 is an abundant number, since it is smaller than the sum of its proper divisors (20850662966).

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

20012044234 is a wasteful number, since it uses less digits than its factorization.

20012044234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26748 (or 26741 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20012044234 its reverse (43244021002), we get a palindrome (63256065236).

The spelling of 20012044234 in words is "twenty billion, twelve million, forty-four thousand, two hundred thirty-four".

Divisors: 1 2 7 13 14 19 26 31 38 49 62 91 98 133 182 217 247 266 403 434 494 589 637 806 931 1178 1274 1519 1729 1862 2821 3038 3458 4123 5642 7657 8246 12103 15314 19747 24206 26669 28861 39494 53338 53599 57722 107198 186683 346697 373366 375193 506711 693394 750386 826739 1013422 1306781 1653478 2426879 2613562 3546977 4853758 5787173 6587243 7093954 10747607 11574346 13174486 15708041 16988153 21495214 24828839 31416082 33976306 40510211 46110701 49657678 75233249 81020422 92221402 109956287 150466498 204204533 219912574 322774907 408409066 526632743 645549814 769694009 1053265486 1429431731 1539388018 2858863462 10006022117 20012044234