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133244201 = 472834983
BaseRepresentation
bin1111111000100…
…10010100101001
3100021201111200102
413330102110221
5233102303301
621115515145
73205362026
oct774222451
9307644612
10133244201
1169238382
1238758ab5
13217b332c
14139a654d
15ba6eb6b
hex7f12529

133244201 has 4 divisors (see below), whose sum is σ = 136079232. Its totient is φ = 130409172.

The previous prime is 133244171. The next prime is 133244203. The reversal of 133244201 is 102442331.

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: 102442331 = 239428629.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-133244201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133244203) 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, 1417445 + ... + 1417538.

It is an arithmetic number, because the mean of its divisors is an integer number (34019808).

Almost surely, 2133244201 is an apocalyptic number.

It is an amenable number.

133244201 is a deficient number, since it is larger than the sum of its proper divisors (2835031).

133244201 is an equidigital number, since it uses as much as digits as its factorization.

133244201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835030.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 133244201 is about 11543.1451953096. The cubic root of 133244201 is about 510.7590913067.

Adding to 133244201 its reverse (102442331), we get a palindrome (235686532).

The spelling of 133244201 in words is "one hundred thirty-three million, two hundred forty-four thousand, two hundred one".

Divisors: 1 47 2834983 133244201