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20011011032 = 231737127173181
BaseRepresentation
bin10010101000101111…
…111100101111011000
31220122121020200112202
4102220233330233120
5311440304323112
613105401225332
71305614534015
oct225057745730
956577220482
1020011011032
11853976a851
123a65792248
131b6ba6173c
14d7b95070c
157c1be36c2
hex4a8bfcbd8

20011011032 has 128 divisors (see below), whose sum is σ = 41588951040. Its totient is φ = 8987811840.

The previous prime is 20011011001. The next prime is 20011011073. The reversal of 20011011032 is 23011011002.

It is a congruent number.

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, 110557982 + ... + 110558162.

It is an arithmetic number, because the mean of its divisors is an integer number (324913680).

Almost surely, 220011011032 is an apocalyptic number.

It is an amenable number.

20011011032 is an abundant number, since it is smaller than the sum of its proper divisors (21577940008).

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

20011011032 is a wasteful number, since it uses less digits than its factorization.

20011011032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20011011032 its reverse (23011011002), we get a palindrome (43022022034).

The spelling of 20011011032 in words is "twenty billion, eleven million, eleven thousand, thirty-two".

Divisors: 1 2 4 8 17 34 37 68 74 127 136 148 173 181 254 296 346 362 508 629 692 724 1016 1258 1384 1448 2159 2516 2941 3077 4318 4699 5032 5882 6154 6401 6697 8636 9398 11764 12308 12802 13394 17272 18796 21971 22987 23528 24616 25604 26788 31313 37592 43942 45974 51208 53576 62626 79883 87884 91948 108817 113849 125252 159766 175768 183896 217634 227698 250504 319532 373507 390779 435268 455396 532321 639064 747014 781558 812927 850519 870536 910792 1064642 1158581 1494028 1563116 1625854 1701038 2129284 2317162 2988056 3126232 3251708 3402076 3976751 4258568 4634324 6503416 6804152 7953502 9268648 13819759 14458823 15907004 19695877 27639518 28917646 31814008 39391754 55279036 57835292 67604767 78783508 110558072 115670584 135209534 147139787 157567016 270419068 294279574 540838136 588559148 1177118296 2501376379 5002752758 10005505516 20011011032