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741421 = 1743613
BaseRepresentation
bin10110101000000101101
31101200001001
42311000231
5142211141
623520301
76205402
oct2650055
91350031
10741421
1146704a
122b9091
131cc615
141542a9
15e9a31
hexb502d

741421 has 4 divisors (see below), whose sum is σ = 785052. Its totient is φ = 697792.

The previous prime is 741413. The next prime is 741431. The reversal of 741421 is 124147.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570025 + 171396 = 755^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 741421 - 23 = 741413 is a prime.

It is a Duffinian number.

741421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741401) 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, 21790 + ... + 21823.

It is an arithmetic number, because the mean of its divisors is an integer number (196263).

2741421 is an apocalyptic number.

It is an amenable number.

741421 is a deficient number, since it is larger than the sum of its proper divisors (43631).

741421 is a wasteful number, since it uses less digits than its factorization.

741421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43630.

The product of its digits is 224, while the sum is 19.

The square root of 741421 is about 861.0580700510. The cubic root of 741421 is about 90.5082763612.

Adding to 741421 its reverse (124147), we get a palindrome (865568).

The spelling of 741421 in words is "seven hundred forty-one thousand, four hundred twenty-one", and thus it is an iban number.

Divisors: 1 17 43613 741421