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3901 = 4783
BaseRepresentation
bin111100111101
312100111
4330331
5111101
630021
714242
oct7475
95314
103901
112a27
122311
131a11
1415c9
151251
hexf3d

3901 has 4 divisors (see below), whose sum is σ = 4032. Its totient is φ = 3772.

The previous prime is 3889. The next prime is 3907. The reversal of 3901 is 1093.

Adding to 3901 its reverse (1093), we get a palindrome (4994).

It is a happy number.

It is the 26-th star number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3901 - 29 = 3389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3907) 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, 6 + ... + 88.

It is an arithmetic number, because the mean of its divisors is an integer number (1008).

It is a 30-hyperperfect number.

23901 is an apocalyptic number.

3901 is the 40-th centered pentagonal number.

It is an amenable number.

3901 is a deficient number, since it is larger than the sum of its proper divisors (131).

3901 is an equidigital number, since it uses as much as digits as its factorization.

3901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 3901 is about 62.4579858785. The cubic root of 3901 is about 15.7419544026.

The spelling of 3901 in words is "three thousand, nine hundred one".

Divisors: 1 47 83 3901