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550023320144000 = 27531511155119709
BaseRepresentation
bin111110100001111100100100…
…0100111011000100010000000
32200010110201022212200222011102
41331003321020213120202000
51034043040224424102000
65225445120334433532
7223565605421504033
oct17503711047304200
92603421285628142
10550023320144000
1114a28864216323a
12518322550628a8
131a7b9c905a7731
1499b73b0c8b01a
15438c57ea0a3d5
hex1f43e489d8880

550023320144000 has 256 divisors, whose sum is σ = 1376740762675200. Its totient is φ = 218522304000000.

The previous prime is 550023320143987. The next prime is 550023320144009. The reversal of 550023320144000 is 441023320055.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (550023320144009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27907206146 + ... + 27907225854.

It is an arithmetic number, because the mean of its divisors is an integer number (5377893604200).

Almost surely, 2550023320144000 is an apocalyptic number.

550023320144000 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 550023320144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688370381337600).

550023320144000 is an abundant number, since it is smaller than the sum of its proper divisors (826717442531200).

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

550023320144000 is a wasteful number, since it uses less digits than its factorization.

550023320144000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31440 (or 31418 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 550023320144000 its reverse (441023320055), we get a palindrome (550464343464055).

The spelling of 550023320144000 in words is "five hundred fifty trillion, twenty-three billion, three hundred twenty million, one hundred forty-four thousand".