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3053921 = 13234917
BaseRepresentation
bin1011101001100101100001
312202011012012
423221211201
51240211141
6145242305
734646363
oct13514541
95664165
103053921
1117a6502
121033395
1382c070
14596d33
15404ceb
hex2e9961

3053921 has 4 divisors (see below), whose sum is σ = 3288852. Its totient is φ = 2818992.

The previous prime is 3053909. The next prime is 3053933. The reversal of 3053921 is 1293503.

It is a happy number.

3053921 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 an emirpimes, since its reverse is a distinct semiprime: 1293503 = 10911867.

It is an interprime number because it is at equal distance from previous prime (3053909) and next prime (3053933).

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 1392400 = 1289^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 3053921 - 210 = 3052897 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 (3053951) 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, 117446 + ... + 117471.

It is an arithmetic number, because the mean of its divisors is an integer number (822213).

Almost surely, 23053921 is an apocalyptic number.

It is an amenable number.

3053921 is a deficient number, since it is larger than the sum of its proper divisors (234931).

3053921 is a wasteful number, since it uses less digits than its factorization.

3053921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234930.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 3053921 is about 1747.5471381339. The cubic root of 3053921 is about 145.0839149625.

The spelling of 3053921 in words is "three million, fifty-three thousand, nine hundred twenty-one".

Divisors: 1 13 234917 3053921