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1030231 = 9711061
BaseRepresentation
bin11111011100001010111
31221100012201
43323201113
5230431411
634025331
711520406
oct3734127
91840181
101030231
11644034
12418247
132a0c07
141cb63d
151553c1
hexfb857

1030231 has 4 divisors (see below), whose sum is σ = 1032264. Its totient is φ = 1028200.

The previous prime is 1030219. The next prime is 1030241. The reversal of 1030231 is 1320301.

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

It is a cyclic number.

It is not a de Polignac number, because 1030231 - 215 = 997463 is a prime.

It is a super-2 number, since 2×10302312 = 2122751826722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (258066).

21030231 is an apocalyptic number.

1030231 is a deficient number, since it is larger than the sum of its proper divisors (2033).

1030231 is an equidigital number, since it uses as much as digits as its factorization.

1030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1030231 is about 1015.0029556607. The cubic root of 1030231 is about 100.9977125907.

Adding to 1030231 its reverse (1320301), we get a palindrome (2350532).

The spelling of 1030231 in words is "one million, thirty thousand, two hundred thirty-one".

Divisors: 1 971 1061 1030231