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8445980 = 2253471217
BaseRepresentation
bin100000001110…
…000000011100
3120220002201002
4200032000130
54130232410
6501005432
7131534564
oct40160034
916802632
108445980
114849654
1229b3878
13199942a
14119bda4
15b1c7a5
hex80e01c

8445980 has 24 divisors (see below), whose sum is σ = 17802288. Its totient is φ = 3365888.

The previous prime is 8445979. The next prime is 8446001. The reversal of 8445980 is 895448.

8445980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6332 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (741762).

Almost surely, 28445980 is an apocalyptic number.

It is an amenable number.

8445980 is an abundant number, since it is smaller than the sum of its proper divisors (9356308).

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

8445980 is a wasteful number, since it uses less digits than its factorization.

8445980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 8445980 is about 2906.1968274706. The cubic root of 8445980 is about 203.6495006647.

It can be divided in two parts, 84 and 45980, that added together give a palindrome (46064).

The spelling of 8445980 in words is "eight million, four hundred forty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 347 694 1217 1388 1735 2434 3470 4868 6085 6940 12170 24340 422299 844598 1689196 2111495 4222990 8445980