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3687980 = 2251710847
BaseRepresentation
bin1110000100011000101100
320221100221212
432010120230
51421003410
6211013552
743230062
oct16043054
96840855
103687980
11209991a
12129a2b8
139c184a
146c0032
154ccb05
hex38462c

3687980 has 24 divisors (see below), whose sum is σ = 8201088. Its totient is φ = 1388288.

The previous prime is 3687979. The next prime is 3687989. The reversal of 3687980 is 897863.

It is not an unprimeable number, because it can be changed into a prime (3687989) 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, 5084 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (341712).

Almost surely, 23687980 is an apocalyptic number.

It is an amenable number.

3687980 is an abundant number, since it is smaller than the sum of its proper divisors (4513108).

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

3687980 is a wasteful number, since it uses less digits than its factorization.

3687980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10873 (or 10871 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 3687980 is about 1920.4114142548. The cubic root of 3687980 is about 154.5003683097.

The spelling of 3687980 in words is "three million, six hundred eighty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 10847 21694 43388 54235 108470 184399 216940 368798 737596 921995 1843990 3687980