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201335331 = 3431560739
BaseRepresentation
bin11000000000000…
…10001000100011
3112000211220011010
430000002020203
5403020212311
631551152003
74663215321
oct1400021043
9460756133
10201335331
11a371523a
1257515603
1332934042
141ca4cd11
1512a1eda6
hexc002223

201335331 has 8 divisors (see below), whose sum is σ = 274690240. Its totient is φ = 131101992.

The previous prime is 201335293. The next prime is 201335333. The reversal of 201335331 is 133533102.

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

It is not a de Polignac number, because 201335331 - 27 = 201335203 is a prime.

It is a super-2 number, since 2×2013353312 = 81071831017759122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201335298 and 201335307.

It is not an unprimeable number, because it can be changed into a prime (201335333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780241 + ... + 780498.

It is an arithmetic number, because the mean of its divisors is an integer number (34336280).

Almost surely, 2201335331 is an apocalyptic number.

201335331 is a deficient number, since it is larger than the sum of its proper divisors (73354909).

201335331 is a wasteful number, since it uses less digits than its factorization.

201335331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560785.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 201335331 is about 14189.2681629462. The cubic root of 201335331 is about 586.1021722704.

Adding to 201335331 its reverse (133533102), we get a palindrome (334868433).

The spelling of 201335331 in words is "two hundred one million, three hundred thirty-five thousand, three hundred thirty-one".

Divisors: 1 3 43 129 1560739 4682217 67111777 201335331