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201323310241 = 1619312432737
BaseRepresentation
bin1011101101111111001…
…1011110110010100001
3201020122120022210212211
42323133303132302201
511244302231411431
6232253041122121
720354656621234
oct2733763366241
9636576283784
10201323310241
117842083a829
1233026929341
1315ca55291a1
149a5bb4d41b
15538471b2b1
hex2edfcdeca1

201323310241 has 4 divisors (see below), whose sum is σ = 201335759172. Its totient is φ = 201310861312.

The previous prime is 201323310229. The next prime is 201323310247. The reversal of 201323310241 is 142013323102.

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 199447987216 + 1875323025 = 446596^2 + 43305^2 .

It is a cyclic number.

It is not a de Polignac number, because 201323310241 - 225 = 201289755809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201323310247) 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, 6200176 + ... + 6232561.

It is an arithmetic number, because the mean of its divisors is an integer number (50333939793).

Almost surely, 2201323310241 is an apocalyptic number.

It is an amenable number.

201323310241 is a deficient number, since it is larger than the sum of its proper divisors (12448931).

201323310241 is a wasteful number, since it uses less digits than its factorization.

201323310241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448930.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201323310241 its reverse (142013323102), we get a palindrome (343336633343).

The spelling of 201323310241 in words is "two hundred one billion, three hundred twenty-three million, three hundred ten thousand, two hundred forty-one".

Divisors: 1 16193 12432737 201323310241