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20522525087260 = 2257971679049291
BaseRepresentation
bin1001010101010010001011…
…10100010101011000011100
32200122221020001121012200101
410222221011310111120130
510142220112410243020
6111351530132110444
74215463206001510
oct452510564253034
980587201535611
1020522525087260
1165a2610432a29
1223754a0165424
13b5b35bcb06c1
1450d41cc68140
15258c8826900a
hex12aa45d1561c

20522525087260 has 96 divisors (see below), whose sum is σ = 50059814611968. Its totient is φ = 6922055301120.

The previous prime is 20522525087249. The next prime is 20522525087287. The reversal of 20522525087260 is 6278052522502.

It is a super-2 number, since 2×205225250872602 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20522525087260.

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, 2256786 + ... + 6792505.

It is an arithmetic number, because the mean of its divisors is an integer number (521456402208).

Almost surely, 220522525087260 is an apocalyptic number.

20522525087260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20522525087260 is an abundant number, since it is smaller than the sum of its proper divisors (29537289524708).

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

20522525087260 is a wasteful number, since it uses less digits than its factorization.

20522525087260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049571 (or 9049569 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 20522525087260 in words is "twenty trillion, five hundred twenty-two billion, five hundred twenty-five million, eighty-seven thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 97 140 167 194 334 388 485 668 679 835 970 1169 1358 1670 1940 2338 2716 3340 3395 4676 5845 6790 11690 13580 16199 23380 32398 64796 80995 113393 161990 226786 323980 453572 566965 1133930 2267860 9049291 18098582 36197164 45246455 63345037 90492910 126690074 180985820 253380148 316725185 633450370 877781227 1266900740 1511231597 1755562454 3022463194 3511124908 4388906135 6044926388 6144468589 7556157985 8777812270 10578621179 12288937178 15112315970 17555624540 21157242358 24577874356 30224631940 30722342945 42314484716 52893105895 61444685890 105786211790 122889371780 146589464909 211572423580 293178929818 586357859636 732947324545 1026126254363 1465894649090 2052252508726 2931789298180 4104505017452 5130631271815 10261262543630 20522525087260