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421043 = 760149
BaseRepresentation
bin1100110110010110011
3210101120012
41212302303
5101433133
613005135
73402350
oct1466263
9711505
10421043
11268377
121837ab
1311984c
14ad627
1584b48
hex66cb3

421043 has 4 divisors (see below), whose sum is σ = 481200. Its totient is φ = 360888.

The previous prime is 421037. The next prime is 421049. The reversal of 421043 is 340124.

421043 is nontrivially palindromic in base 15.

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

It is an interprime number because it is at equal distance from previous prime (421037) and next prime (421049).

It is a cyclic number.

It is not a de Polignac number, because 421043 - 212 = 416947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421049) 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, 30068 + ... + 30081.

It is an arithmetic number, because the mean of its divisors is an integer number (120300).

2421043 is an apocalyptic number.

421043 is a deficient number, since it is larger than the sum of its proper divisors (60157).

421043 is an equidigital number, since it uses as much as digits as its factorization.

421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60156.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 421043 is about 648.8782628506. The cubic root of 421043 is about 74.9506638493.

Adding to 421043 its reverse (340124), we get a palindrome (761167).

The spelling of 421043 in words is "four hundred twenty-one thousand, forty-three", and thus it is an iban number.

Divisors: 1 7 60149 421043