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133230233143 = 719032890449
BaseRepresentation
bin111110000010100100…
…1000000011000110111
3110201220001012002110101
41330011021000120313
54140323414430033
6141112150134531
712424366203460
oct1740511003067
9421801162411
10133230233143
1151558aa20a7
12219a2651447
13c74319a4a7
14663c4c3d67
1536eb73497d
hex1f05240637

133230233143 has 4 divisors (see below), whose sum is σ = 152263123600. Its totient is φ = 114197342688.

The previous prime is 133230233111. The next prime is 133230233179. The reversal of 133230233143 is 341332032331.

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 133230233143 - 25 = 133230233111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133230233183) 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, 9516445218 + ... + 9516445231.

It is an arithmetic number, because the mean of its divisors is an integer number (38065780900).

Almost surely, 2133230233143 is an apocalyptic number.

133230233143 is a deficient number, since it is larger than the sum of its proper divisors (19032890457).

133230233143 is an equidigital number, since it uses as much as digits as its factorization.

133230233143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19032890456.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 133230233143 its reverse (341332032331), we get a palindrome (474562265474).

The spelling of 133230233143 in words is "one hundred thirty-three billion, two hundred thirty million, two hundred thirty-three thousand, one hundred forty-three".

Divisors: 1 7 19032890449 133230233143