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57384561780000 = 25375471321109
BaseRepresentation
bin11010000110000111000100…
…11010111010010100100000
321112011220120202221210000000
431003003202122322110200
530010142040303430000
6322014034224300000
715041616636035520
oct1503034232722440
9245156522853000
1057384561780000
1117314724126624
126529619771600
132603458109a00
1410255db509680
15697a86730000
hex3430e26ba520

57384561780000 has 2880 divisors, whose sum is σ = 262258445433600. Its totient is φ = 12096594432000.

The previous prime is 57384561779989. The next prime is 57384561780047. The reversal of 57384561780000 is 8716548375.

It is a happy number.

57384561780000 is a `hidden beast` number, since 5 + 7 + 3 + 8 + 4 + 561 + 78 + 0 + 0 + 0 + 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 51744419446 + ... + 51744420554.

It is an arithmetic number, because the mean of its divisors is an integer number (91061960220).

Almost surely, 257384561780000 is an apocalyptic number.

57384561780000 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 57384561780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131129222716800).

57384561780000 is an abundant number, since it is smaller than the sum of its proper divisors (204873883653600).

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

57384561780000 is an equidigital number, since it uses as much as digits as its factorization.

57384561780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 57384561780000 in words is "fifty-seven trillion, three hundred eighty-four billion, five hundred sixty-one million, seven hundred eighty thousand".