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54545443040 = 25511137226217
BaseRepresentation
bin110010110011001010…
…010110100011100000
312012210100212121021002
4302303022112203200
51343202113134130
641020254051132
73640454421164
oct626312264340
9165710777232
1054545443040
1121150531750
12a6a31a9aa8
1351b36976aa
1428d62a8ca4
15164395cb45
hexcb32968e0

54545443040 has 96 divisors (see below), whose sum is σ = 141605229024. Its totient is φ = 19689840640.

The previous prime is 54545443039. The next prime is 54545443091. The reversal of 54545443040 is 4034454545.

It is a junction number, because it is equal to n+sod(n) for n = 54545442985 and 54545443003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128012 + ... + 354228.

It is an arithmetic number, because the mean of its divisors is an integer number (1475054469).

Almost surely, 254545443040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54545443040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70802614512).

54545443040 is an abundant number, since it is smaller than the sum of its proper divisors (87059785984).

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

54545443040 is a wasteful number, since it uses less digits than its factorization.

54545443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226380 (or 226372 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 54545443040 its reverse (4034454545), we get a palindrome (58579897585).

The spelling of 54545443040 in words is "fifty-four billion, five hundred forty-five million, four hundred forty-three thousand, forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 137 160 176 220 274 352 440 548 685 880 1096 1370 1507 1760 2192 2740 3014 4384 5480 6028 7535 10960 12056 15070 21920 24112 30140 48224 60280 120560 226217 241120 452434 904868 1131085 1809736 2262170 2488387 3619472 4524340 4976774 7238944 9048680 9953548 12441935 18097360 19907096 24883870 30991729 36194720 39814192 49767740 61983458 79628384 99535480 123966916 154958645 199070960 247933832 309917290 340909019 398141920 495867664 619834580 681818038 991735328 1239669160 1363636076 1704545095 2479338320 2727272152 3409090190 4958676640 5454544304 6818180380 10909088608 13636360760 27272721520 54545443040