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311333332109 = 1993812319231
BaseRepresentation
bin1001000011111001110…
…10011010010010001101
31002202121100120221200012
410201330322122102031
520100102313111414
6355005145443005
731331062442042
oct4417472322215
91082540527605
10311333332109
11110043605478
1250408aa0465
1323487b24897
14110d63c11c9
15817264333e
hex487ce9a48d

311333332109 has 8 divisors (see below), whose sum is σ = 311544091392. Its totient is φ = 311122631520.

The previous prime is 311333332049. The next prime is 311333332153. The reversal of 311333332109 is 901233333113.

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 311333332109 - 212 = 311333328013 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 (311333331109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16179524 + ... + 16198754.

It is an arithmetic number, because the mean of its divisors is an integer number (38943011424).

Almost surely, 2311333332109 is an apocalyptic number.

It is an amenable number.

311333332109 is a deficient number, since it is larger than the sum of its proper divisors (210759283).

311333332109 is a wasteful number, since it uses less digits than its factorization.

311333332109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29347.

The product of its (nonzero) digits is 13122, while the sum is 32.

The spelling of 311333332109 in words is "three hundred eleven billion, three hundred thirty-three million, three hundred thirty-two thousand, one hundred nine".

Divisors: 1 1993 8123 19231 16189139 38327383 156213413 311333332109