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5220218880 = 21133579239
BaseRepresentation
bin1001101110010011…
…00011100000000000
3111110210202121002000
410313021203200000
541142334001010
62221555224000
7243235062012
oct46711434000
914423677060
105220218880
11223974a788
1210182a8000
13652674b16
143774281b2
152084567c0
hex137263800

5220218880 has 384 divisors, whose sum is σ = 18869760000. Its totient is φ = 1368686592.

The previous prime is 5220218879. The next prime is 5220218891. The reversal of 5220218880 is 888120225.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 21841801 + ... + 21842039.

It is an arithmetic number, because the mean of its divisors is an integer number (49140000).

Almost surely, 25220218880 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 5220218880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9434880000).

5220218880 is an abundant number, since it is smaller than the sum of its proper divisors (13649541120).

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

5220218880 is a wasteful number, since it uses less digits than its factorization.

5220218880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 5220218880 is about 72251.0822064279. The cubic root of 5220218880 is about 1734.7207405986.

The spelling of 5220218880 in words is "five billion, two hundred twenty million, two hundred eighteen thousand, eight hundred eighty".