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331448080 = 2454143101
BaseRepresentation
bin10011110000010…
…111111100010000
3212002200022021211
4103300113330100
51134322314310
652520025504
711133155635
oct2360277420
9762608254
10331448080
11160103937
1293002294
135388bc32
143203c18c
151e171c8a
hex13c17f10

331448080 has 20 divisors (see below), whose sum is σ = 770616972. Its totient is φ = 132579200.

The previous prime is 331448071. The next prime is 331448083. The reversal of 331448080 is 80844133.

It can be written as a sum of positive squares in 2 ways, for example, as 244734736 + 86713344 = 15644^2 + 9312^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (331448083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071471 + ... + 2071630.

Almost surely, 2331448080 is an apocalyptic number.

It is an amenable number.

331448080 is an abundant number, since it is smaller than the sum of its proper divisors (439168892).

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

331448080 is a wasteful number, since it uses less digits than its factorization.

331448080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143114 (or 4143108 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 331448080 is about 18205.7155860460. The cubic root of 331448080 is about 692.0516405936.

The spelling of 331448080 in words is "three hundred thirty-one million, four hundred forty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4143101 8286202 16572404 20715505 33144808 41431010 66289616 82862020 165724040 331448080