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321384383069 = 2638991217831
BaseRepresentation
bin1001010110101000000…
…00001000001001011101
31010201112211102020112212
410223110000020021131
520231143400224234
6403350354410205
732135130116441
oct4532400101135
91121484366485
10321384383069
11114331118862
1252352b90965
13243ca277909
14117ab232821
15855ec375ce
hex4ad400825d

321384383069 has 4 divisors (see below), whose sum is σ = 321385864800. Its totient is φ = 321382901340.

The previous prime is 321384382939. The next prime is 321384383077. The reversal of 321384383069 is 960383483123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 960383483123 = 7191335721117.

It is a cyclic number.

It is not a de Polignac number, because 321384383069 - 216 = 321384317533 is a prime.

It is a super-2 number, since 2×3213843830692 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321384383669) 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, 345017 + ... + 872814.

It is an arithmetic number, because the mean of its divisors is an integer number (80346466200).

Almost surely, 2321384383069 is an apocalyptic number.

It is an amenable number.

321384383069 is a deficient number, since it is larger than the sum of its proper divisors (1481731).

321384383069 is a wasteful number, since it uses less digits than its factorization.

321384383069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481730.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 321384383069 in words is "three hundred twenty-one billion, three hundred eighty-four million, three hundred eighty-three thousand, sixty-nine".

Divisors: 1 263899 1217831 321384383069