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6620080 = 24583997
BaseRepresentation
bin11001010000001110110000
3110110100001011
4121100032300
53143320310
6353520304
7110161345
oct31201660
913410034
106620080
113811845
122273094
1314aa30c
14c447cc
158ab78a
hex6503b0

6620080 has 40 divisors (see below), whose sum is σ = 15592752. Its totient is φ = 2613504.

The previous prime is 6620059. The next prime is 6620083. The reversal of 6620080 is 800266.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (6620083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6142 + ... + 7138.

Almost surely, 26620080 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 6620080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7796376).

6620080 is an abundant number, since it is smaller than the sum of its proper divisors (8972672).

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

6620080 is a wasteful number, since it uses less digits than its factorization.

6620080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6620080 is about 2572.9516124482. The cubic root of 6620080 is about 187.7677833017.

The spelling of 6620080 in words is "six million, six hundred twenty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 83 166 332 415 664 830 997 1328 1660 1994 3320 3988 4985 6640 7976 9970 15952 19940 39880 79760 82751 165502 331004 413755 662008 827510 1324016 1655020 3310040 6620080