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133033230221 = 1932233217223
BaseRepresentation
bin111101111100101100…
…1011111111110001101
3110201101022111022020212
41323321121133332031
54134423001331341
6141040431452205
712416454541103
oct1737131377615
9421338438225
10133033230221
1151467876971
1221948687065
13c711422408
146620281c73
1536d92bd5eb
hex1ef965ff8d

133033230221 has 8 divisors (see below), whose sum is σ = 140039968320. Its totient is φ = 126026991072.

The previous prime is 133033230167. The next prime is 133033230251. The reversal of 133033230221 is 122032330331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133033230221 - 222 = 133029035917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133033230251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503816 + ... + 721038.

It is an arithmetic number, because the mean of its divisors is an integer number (17504996040).

Almost surely, 2133033230221 is an apocalyptic number.

It is an amenable number.

133033230221 is a deficient number, since it is larger than the sum of its proper divisors (7006738099).

133033230221 is a wasteful number, since it uses less digits than its factorization.

133033230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249475.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 133033230221 its reverse (122032330331), we get a palindrome (255065560552).

The spelling of 133033230221 in words is "one hundred thirty-three billion, thirty-three million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 19 32233 217223 612427 4127237 7001748959 133033230221