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54120545012000 = 255349932709821
BaseRepresentation
bin11000100111000111010111…
…10111000100100100100000
321002121212120211120001111002
430103203223313010210200
524043202334010341000
6311034345105211132
714254036362215015
oct1423435367044440
9232555524501432
1054120545012000
1116276437815415
1260a0b11030aa8
1324277125baa7c
14d5163c40170c
1563cbed87a8d5
hex3138ebdc4920

54120545012000 has 96 divisors (see below), whose sum is σ = 133000860296304. Its totient is φ = 21643874304000.

The previous prime is 54120545011961. The next prime is 54120545012003. The reversal of 54120545012000 is 21054502145.

It can be written as a sum of positive squares in 8 ways, for example, as 2836785644176 + 51283759367824 = 1684276^2 + 7161268^2 .

It is not an unprimeable number, because it can be changed into a prime (54120545012003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18617090 + ... + 21326910.

Almost surely, 254120545012000 is an apocalyptic number.

54120545012000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54120545012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66500430148152).

54120545012000 is an abundant number, since it is smaller than the sum of its proper divisors (78880315284304).

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

54120545012000 is a wasteful number, since it uses less digits than its factorization.

54120545012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714839 (or 2714821 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 54120545012000 its reverse (21054502145), we get a palindrome (54141599514145).

The spelling of 54120545012000 in words is "fifty-four trillion, one hundred twenty billion, five hundred forty-five million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 4993 9986 19972 24965 39944 49930 79888 99860 124825 159776 199720 249650 399440 499300 624125 798880 998600 1248250 1997200 2496500 2709821 3994400 4993000 5419642 9986000 10839284 13549105 19972000 21678568 27098210 43357136 54196420 67745525 86714272 108392840 135491050 216785680 270982100 338727625 433571360 541964200 677455250 1083928400 1354910500 2167856800 2709821000 5419642000 10839284000 13530136253 27060272506 54120545012 67650681265 108241090024 135301362530 216482180048 270602725060 338253406325 432964360096 541205450120 676506812650 1082410900240 1353013625300 1691267031625 2164821800480 2706027250600 3382534063250 5412054501200 6765068126500 10824109002400 13530136253000 27060272506000 54120545012000