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55044003210042 = 237111096857159407
BaseRepresentation
bin11001000001111111011100…
…10000100010001100111010
321012220011012020002001212010
430200333232100202030322
524203320104310210132
6313022511015230350
714410540466330340
oct1440775620421472
9235804166061763
1055044003210042
11165a20378aa640
12620ba913783b6
132493820043322
14d842030a9990
15656c4a5246cc
hex320fee42233a

55044003210042 has 128 divisors (see below), whose sum is σ = 138532846510080. Its totient is φ = 14163822466560.

The previous prime is 55044003210037. The next prime is 55044003210071. The reversal of 55044003210042 is 24001230044055.

It is a super-2 number, since 2×550440032100422 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55044003209991 and 55044003210009.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 345225103 + ... + 345384509.

It is an arithmetic number, because the mean of its divisors is an integer number (1082287863360).

Almost surely, 255044003210042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55044003210042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69266423255040).

55044003210042 is an abundant number, since it is smaller than the sum of its proper divisors (83488843300038).

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

55044003210042 is a wasteful number, since it uses less digits than its factorization.

55044003210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166396.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 55044003210042 its reverse (24001230044055), we get a palindrome (79045233254097).

The spelling of 55044003210042 in words is "fifty-five trillion, forty-four billion, three million, two hundred ten thousand, forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 109 154 218 231 327 462 654 763 1199 1526 2289 2398 3597 4578 6857 7194 8393 13714 16786 20571 25179 41142 47999 50358 75427 95998 143997 150854 159407 226281 287994 318814 452562 478221 527989 747413 956442 1055978 1115849 1494826 1583967 1753477 2231698 2242239 3167934 3347547 3506954 4484478 5231891 5260431 6695094 8221543 10463782 10520862 12274339 15695673 16443086 17375363 24548678 24664629 31391346 34750726 36823017 49329258 52126089 57550801 73646034 104252178 115101602 121627541 172652403 191128993 243255082 345304806 364882623 382257986 573386979 729765246 1093053799 1146773958 1337902951 2186107598 2675805902 3279161397 4013708853 6558322794 7651376593 8027417706 12023591789 15302753186 22954129779 24047183578 36070775367 45908259558 72141550734 84165142523 119142864091 168330285046 238285728182 252495427569 357428592273 504990855138 714857184546 834000048637 1310571505001 1668000097274 2502000145911 2621143010002 3931714515003 5004000291822 7863429030006 9174000535007 18348001070014 27522001605021 55044003210042