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1020223133 = 8591187687
BaseRepresentation
bin111100110011110…
…101111010011101
32122002201201000222
4330303311322131
54042134120013
6245122531125
734165516316
oct7463657235
92562651028
101020223133
11483986816
12245806aa5
1313349b037
14996d360d
155e878508
hex3ccf5e9d

1020223133 has 4 divisors (see below), whose sum is σ = 1021411680. Its totient is φ = 1019034588.

The previous prime is 1020223081. The next prime is 1020223147. The reversal of 1020223133 is 3313220201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3313220201 = 31106878071.

It is a cyclic number.

It is not a de Polignac number, because 1020223133 - 216 = 1020157597 is a prime.

It is a super-2 number, since 2×10202231332 = 2081710482216671378, 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 (1020723133) 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, 592985 + ... + 594702.

It is an arithmetic number, because the mean of its divisors is an integer number (255352920).

Almost surely, 21020223133 is an apocalyptic number.

It is an amenable number.

1020223133 is a deficient number, since it is larger than the sum of its proper divisors (1188547).

1020223133 is an equidigital number, since it uses as much as digits as its factorization.

1020223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188546.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1020223133 is about 31940.9319369363. The cubic root of 1020223133 is about 1006.6961064126.

Adding to 1020223133 its reverse (3313220201), we get a palindrome (4333443334).

The spelling of 1020223133 in words is "one billion, twenty million, two hundred twenty-three thousand, one hundred thirty-three".

Divisors: 1 859 1187687 1020223133