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3949801 = 7155631
BaseRepresentation
bin1111000100010011101001
321102200002221
433010103221
52002343201
6220354041
745400312
oct17042351
97380087
103949801
1122585a9
1213a5921
13a83a7b
1474b609
155304a1
hex3c44e9

3949801 has 4 divisors (see below), whose sum is σ = 4005504. Its totient is φ = 3894100.

The previous prime is 3949793. The next prime is 3949819. The reversal of 3949801 is 1089493.

3949801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1089493 = 4126573.

It is a cyclic number.

It is not a de Polignac number, because 3949801 - 23 = 3949793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3949871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27745 + ... + 27886.

It is an arithmetic number, because the mean of its divisors is an integer number (1001376).

Almost surely, 23949801 is an apocalyptic number.

It is an amenable number.

3949801 is a deficient number, since it is larger than the sum of its proper divisors (55703).

3949801 is an equidigital number, since it uses as much as digits as its factorization.

3949801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55702.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3949801 is about 1987.4106269214. The cubic root of 3949801 is about 158.0732582353.

The spelling of 3949801 in words is "three million, nine hundred forty-nine thousand, eight hundred one".

Divisors: 1 71 55631 3949801