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23002023133 = 199711518289
BaseRepresentation
bin10101011011000001…
…110000010011011101
32012101001100211210201
4111123001300103131
5334102004220013
614322245103501
71443003653635
oct253301602335
965331324721
1023002023133
119834051481
12455b3b7b91
132227619c9b
141182c976c5
158e95ae3dd
hex55b0704dd

23002023133 has 4 divisors (see below), whose sum is σ = 23013543420. Its totient is φ = 22990502848.

The previous prime is 23002023113. The next prime is 23002023227. The reversal of 23002023133 is 33132020032.

It is a happy number.

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 5227000804 + 17775022329 = 72298^2 + 133323^2 .

It is a cyclic number.

It is not a de Polignac number, because 23002023133 - 25 = 23002023101 is a prime.

It is a super-2 number, since 2×230020231332 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23002023133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002023113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5757148 + ... + 5761141.

It is an arithmetic number, because the mean of its divisors is an integer number (5753385855).

Almost surely, 223002023133 is an apocalyptic number.

It is an amenable number.

23002023133 is a deficient number, since it is larger than the sum of its proper divisors (11520287).

23002023133 is a wasteful number, since it uses less digits than its factorization.

23002023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520286.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23002023133 its reverse (33132020032), we get a palindrome (56134043165).

The spelling of 23002023133 in words is "twenty-three billion, two million, twenty-three thousand, one hundred thirty-three".

Divisors: 1 1997 11518289 23002023133