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6677980 = 225379881
BaseRepresentation
bin11001011110010111011100
3110120021110121
4121132113130
53202143410
6355044324
7110522221
oct31362734
913507417
106677980
1138512a1
1222a06a4
1314ca78a
14c5b948
158bd9da
hex65e5dc

6677980 has 24 divisors (see below), whose sum is σ = 14076720. Its totient is φ = 2661120.

The previous prime is 6677971. The next prime is 6678017. The reversal of 6677980 is 897766.

6677980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7140 + ... + 8020.

It is an arithmetic number, because the mean of its divisors is an integer number (586530).

Almost surely, 26677980 is an apocalyptic number.

It is an amenable number.

6677980 is an abundant number, since it is smaller than the sum of its proper divisors (7398740).

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

6677980 is a wasteful number, since it uses less digits than its factorization.

6677980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 6677980 is about 2584.1787863846. The cubic root of 6677980 is about 188.3136081533.

The spelling of 6677980 in words is "six million, six hundred seventy-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 379 758 881 1516 1762 1895 3524 3790 4405 7580 8810 17620 333899 667798 1335596 1669495 3338990 6677980