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5218317280 = 2551117237583
BaseRepresentation
bin1001101110000100…
…10011001111100000
3111110200011222120101
410313002103033200
541141342123110
62221450352144
7243212652001
oct46702231740
914420158511
105218317280
112238671010
12101772b654
1365215a407
143770911a8
152081cd13a
hex1370933e0

5218317280 has 192 divisors, whose sum is σ = 14861242368. Its totient is φ = 1708072960.

The previous prime is 5218317241. The next prime is 5218317337. The reversal of 5218317280 is 827138125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684369 + ... + 691951.

It is an arithmetic number, because the mean of its divisors is an integer number (77402304).

Almost surely, 25218317280 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 5218317280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7430621184).

5218317280 is an abundant number, since it is smaller than the sum of its proper divisors (9642925088).

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

5218317280 is a wasteful number, since it uses less digits than its factorization.

5218317280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7649 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 5218317280 is about 72237.9213432945. The cubic root of 5218317280 is about 1734.5100760225.

The spelling of 5218317280 in words is "five billion, two hundred eighteen million, three hundred seventeen thousand, two hundred eighty".