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20627986844652 = 22311577601450643
BaseRepresentation
bin1001011000010110100111…
…10101000000101111101100
32201001000102212111120112220
410230023103311000233230
510200432104113012102
6111512211043355340
74226215513103115
oct454132365005754
981030385446486
1020627986844652
116633309892210
122391a13082b50
13b68298204145
1451458542920c
1525b8abc1c1bc
hex12c2d3d40bec

20627986844652 has 96 divisors (see below), whose sum is σ = 52686239311104. Its totient is φ = 6229675008000.

The previous prime is 20627986844639. The next prime is 20627986844669. The reversal of 20627986844652 is 25644868972602.

It is a super-2 number, since 2×206279868446522 (a number of 27 digits) contains 22 as substring.

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, 45549243 + ... + 45999885.

It is an arithmetic number, because the mean of its divisors is an integer number (548814992824).

Almost surely, 220627986844652 is an apocalyptic number.

20627986844652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20627986844652 is an abundant number, since it is smaller than the sum of its proper divisors (32058252466452).

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

20627986844652 is a wasteful number, since it uses less digits than its factorization.

20627986844652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451839 (or 451837 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 69.

The spelling of 20627986844652 in words is "twenty trillion, six hundred twenty-seven billion, nine hundred eighty-six million, eight hundred forty-four thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 577 601 1154 1202 1731 1803 2308 2404 3462 3606 6347 6611 6924 7212 12694 13222 19041 19833 25388 26444 38082 39666 76164 79332 346777 450643 693554 901286 1040331 1351929 1387108 1802572 2080662 2703858 3814547 4161324 4957073 5407716 7629094 9914146 11443641 14871219 15258188 19828292 22887282 29742438 45774564 59484876 260021011 270836443 520042022 541672886 780063033 812509329 1040084044 1083345772 1560126066 1625018658 2860231121 2979200873 3120252132 3250037316 5720462242 5958401746 8580693363 8937602619 11440924484 11916803492 17161386726 17875205238 34322773452 35750410476 156272627611 312545255222 468817882833 625090510444 937635765666 1718998903721 1875271531332 3437997807442 5156996711163 6875995614884 10313993422326 20627986844652