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80213616 = 243271731151
BaseRepresentation
bin1001100011111…
…11011001110000
312120221021101200
410301333121300
5131013313431
611543131200
71662542640
oct461773160
9176837350
1080213616
114130774a
1222a43b00
13138066a2
14a920520
157096ee6
hex4c7f670

80213616 has 240 divisors, whose sum is σ = 282267648. Its totient is φ = 20736000.

The previous prime is 80213591. The next prime is 80213629. The reversal of 80213616 is 61631208.

It is a self number, because there is not a number n which added to its sum of digits gives 80213616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 531141 + ... + 531291.

Almost surely, 280213616 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 80213616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141133824).

80213616 is an abundant number, since it is smaller than the sum of its proper divisors (202054032).

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

80213616 is a wasteful number, since it uses less digits than its factorization.

80213616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80213616 is about 8956.2054465047. The cubic root of 80213616 is about 431.2701152558.

The spelling of 80213616 in words is "eighty million, two hundred thirteen thousand, six hundred sixteen".