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201044430313 = 61672734197
BaseRepresentation
bin1011101100111100101…
…1101000110111101001
3201012221010120020112121
42323033023220313221
511243214333232223
6232205235511241
720345032314226
oct2731713506751
9635833506477
10201044430313
1178298381151
1232b69458521
1315c5c81458c
149a32ab694d
155369ed015d
hex2ecf2e8de9

201044430313 has 12 divisors (see below), whose sum is σ = 207435897732. Its totient is φ = 194796882720.

The previous prime is 201044430311. The next prime is 201044430317. The reversal of 201044430313 is 313034440102.

It can be written as a sum of positive squares in 2 ways, for example, as 77834304144 + 123210126169 = 278988^2 + 351013^2 .

It is not a de Polignac number, because 201044430313 - 21 = 201044430311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201044430311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93270 + ... + 640927.

It is an arithmetic number, because the mean of its divisors is an integer number (17286324811).

Almost surely, 2201044430313 is an apocalyptic number.

It is an amenable number.

201044430313 is a deficient number, since it is larger than the sum of its proper divisors (6391467419).

201044430313 is an frugal number, since it uses more digits than its factorization.

201044430313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734392 (or 734325 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 201044430313 its reverse (313034440102), we get a palindrome (514078870415).

The spelling of 201044430313 in words is "two hundred one billion, forty-four million, four hundred thirty thousand, three hundred thirteen".

Divisors: 1 61 67 4087 4489 273829 734197 44786017 49191199 3000663139 3295810333 201044430313