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54442440900 = 2234526721289
BaseRepresentation
bin110010101101000001…
…011011100011000100
312012112012001112220000
4302231001123203010
51342444231102100
641002134241300
73635064053331
oct625501334304
9165465045800
1054442440900
11210a837a711
12a6747b6230
135198242593
1428c6735988
1516398b3900
hexcad05b8c4

54442440900 has 90 divisors (see below), whose sum is σ = 176480911530. Its totient is φ = 14517982080.

The previous prime is 54442440847. The next prime is 54442440947. The reversal of 54442440900 is 904424445.

It is a happy number.

54442440900 is a `hidden beast` number, since 544 + 4 + 24 + 4 + 0 + 90 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6903615744 + 47538825156 = 83088^2 + 218034^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×544424409002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3352545 + ... + 3368744.

It is an arithmetic number, because the mean of its divisors is an integer number (1960899017).

Almost surely, 254442440900 is an apocalyptic number.

54442440900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54442440900 is an abundant number, since it is smaller than the sum of its proper divisors (122038470630).

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

54442440900 is a wasteful number, since it uses less digits than its factorization.

54442440900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721315 (or 6721299 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 54442440900 in words is "fifty-four billion, four hundred forty-two million, four hundred forty thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 270 300 324 405 450 540 675 810 900 1350 1620 2025 2700 4050 8100 6721289 13442578 20163867 26885156 33606445 40327734 60491601 67212890 80655468 100819335 120983202 134425780 168032225 181474803 201638670 241966404 302458005 336064450 362949606 403277340 504096675 544424409 604916010 672128900 725899212 907374015 1008193350 1088848818 1209832020 1512290025 1814748030 2016386700 2177697636 2722122045 3024580050 3629496060 4536870075 5444244090 6049160100 9073740150 10888488180 13610610225 18147480300 27221220450 54442440900