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1030253 = 7147179
BaseRepresentation
bin11111011100001101101
31221100020112
43323201231
5230432003
634025405
711520440
oct3734155
91840215
101030253
11644054
12418265
132a0c23
141cb657
151553d8
hexfb86d

1030253 has 4 divisors (see below), whose sum is σ = 1177440. Its totient is φ = 883068.

The previous prime is 1030247. The next prime is 1030291. The reversal of 1030253 is 3520301.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1030253 is a prime.

It is a super-2 number, since 2×10302532 = 2122842488018, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030213) 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, 73583 + ... + 73596.

It is an arithmetic number, because the mean of its divisors is an integer number (294360).

21030253 is an apocalyptic number.

It is an amenable number.

1030253 is a deficient number, since it is larger than the sum of its proper divisors (147187).

1030253 is an equidigital number, since it uses as much as digits as its factorization.

1030253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147186.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 1030253 is about 1015.0137930097. The cubic root of 1030253 is about 100.9984315020.

Adding to 1030253 its reverse (3520301), we get a palindrome (4550554).

The spelling of 1030253 in words is "one million, thirty thousand, two hundred fifty-three".

Divisors: 1 7 147179 1030253