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4218045980 = 2251911100121
BaseRepresentation
bin1111101101101010…
…0100011000011100
3101212221222221022012
43323122210120130
532114304432410
61534315210352
7206345541101
oct37332443034
911787887265
104218045980
111874a82415
129987469b8
13522b568c5
142c02b2aa8
1519a496605
hexfb6a461c

4218045980 has 24 divisors (see below), whose sum is σ = 9324102480. Its totient is φ = 1598417280.

The previous prime is 4218045941. The next prime is 4218045983. The reversal of 4218045980 is 895408124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218045983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5549681 + ... + 5550440.

It is an arithmetic number, because the mean of its divisors is an integer number (388504270).

Almost surely, 24218045980 is an apocalyptic number.

It is an amenable number.

4218045980 is an abundant number, since it is smaller than the sum of its proper divisors (5106056500).

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

4218045980 is a wasteful number, since it uses less digits than its factorization.

4218045980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100149 (or 11100147 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 4218045980 is about 64946.4855092252. The cubic root of 4218045980 is about 1615.7361301467.

The spelling of 4218045980 in words is "four billion, two hundred eighteen million, forty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 11100121 22200242 44400484 55500605 111001210 210902299 222002420 421804598 843609196 1054511495 2109022990 4218045980