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5781328195500 = 22335311132994731
BaseRepresentation
bin101010000100001001000…
…0000110110111110101100
3202110200121200221220212000
41110020102000312332230
51224210130004224000
620143523331212300
71134454462562304
oct124102200667654
922420550856760
105781328195500
111929936058170
12794563147090
1332c23b8937c0
1415db63da6604
15a05bb6a7000
hex54212036fac

5781328195500 has 384 divisors, whose sum is σ = 21976062151680. Its totient is φ = 1293723360000.

The previous prime is 5781328195471. The next prime is 5781328195549. The reversal of 5781328195500 is 55918231875.

5781328195500 is a `hidden beast` number, since 5 + 7 + 8 + 1 + 3 + 2 + 81 + 9 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 433135 + ... + 3427865.

It is an arithmetic number, because the mean of its divisors is an integer number (57229328520).

Almost surely, 25781328195500 is an apocalyptic number.

5781328195500 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 5781328195500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10988031075840).

5781328195500 is an abundant number, since it is smaller than the sum of its proper divisors (16194733956180).

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

5781328195500 is a wasteful number, since it uses less digits than its factorization.

5781328195500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994783 (or 2994765 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 54.

The spelling of 5781328195500 in words is "five trillion, seven hundred eighty-one billion, three hundred twenty-eight million, one hundred ninety-five thousand, five hundred".