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3968980 = 2251911039
BaseRepresentation
bin1111001000111111010100
321110122102021
433020333110
52004001410
6221022524
745510241
oct17107724
97418367
103968980
112270a54
1213b4a44
13a8c712
147545c8
15535eda
hex3c8fd4

3968980 has 24 divisors (see below), whose sum is σ = 8386560. Its totient is φ = 1577760.

The previous prime is 3968957. The next prime is 3968981. The reversal of 3968980 is 898693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3301 + ... + 4339.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 23968980 is an apocalyptic number.

It is an amenable number.

3968980 is an abundant number, since it is smaller than the sum of its proper divisors (4417580).

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

3968980 is a wasteful number, since it uses less digits than its factorization.

3968980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3968980 is about 1992.2299064114. The cubic root of 3968980 is about 158.3286966940.

The spelling of 3968980 in words is "three million, nine hundred sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1039 1910 2078 3820 4156 5195 10390 20780 198449 396898 793796 992245 1984490 3968980