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3930980 = 225196549
BaseRepresentation
bin1110111111101101100100
321101201021212
432333231210
52001242410
6220130552
745261404
oct16775544
97351255
103930980
112245449
121396a58
13a78331
14744804
15529b05
hex3bfb64

3930980 has 12 divisors (see below), whose sum is σ = 8255100. Its totient is φ = 1572384.

The previous prime is 3930973. The next prime is 3930989. The reversal of 3930980 is 890393.

It can be written as a sum of positive squares in 2 ways, for example, as 1162084 + 2768896 = 1078^2 + 1664^2 .

It is not an unprimeable number, because it can be changed into a prime (3930989) 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, 98255 + ... + 98294.

It is an arithmetic number, because the mean of its divisors is an integer number (687925).

Almost surely, 23930980 is an apocalyptic number.

It is an amenable number.

3930980 is an abundant number, since it is smaller than the sum of its proper divisors (4324120).

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

3930980 is a wasteful number, since it uses less digits than its factorization.

3930980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196558 (or 196556 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 3930980 is about 1982.6699170563. The cubic root of 3930980 is about 157.8217827105.

The spelling of 3930980 in words is "three million, nine hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 196549 393098 786196 982745 1965490 3930980