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7321312201 = 75471912069
BaseRepresentation
bin1101101000110001…
…00101101111001001
3200220020100012021011
412310120211233021
5104443223442301
63210253043521
7346300061350
oct66430455711
920806305234
107321312201
113117765245
121503a865a1
138c8a564c8
144d64ba997
152ccb37a51
hex1b4625bc9

7321312201 has 8 divisors (see below), whose sum is σ = 8382514880. Its totient is φ = 6263934768.

The previous prime is 7321312147. The next prime is 7321312217. The reversal of 7321312201 is 1022131237.

It is a happy number.

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

It is not a de Polignac number, because 7321312201 - 211 = 7321310153 is a prime.

It is a super-2 number, since 2×73213122012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7321312261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952206 + ... + 959863.

It is an arithmetic number, because the mean of its divisors is an integer number (1047814360).

Almost surely, 27321312201 is an apocalyptic number.

It is an amenable number.

7321312201 is a deficient number, since it is larger than the sum of its proper divisors (1061202679).

7321312201 is a wasteful number, since it uses less digits than its factorization.

7321312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912623.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7321312201 is about 85564.6667789924. Note that the first 3 decimals coincide. The cubic root of 7321312201 is about 1941.7633912516.

Adding to 7321312201 its reverse (1022131237), we get a palindrome (8343443438).

The spelling of 7321312201 in words is "seven billion, three hundred twenty-one million, three hundred twelve thousand, two hundred one".

Divisors: 1 7 547 3829 1912069 13384483 1045901743 7321312201