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321103102313 = 7245714339441
BaseRepresentation
bin1001010110000110011…
…11001000000101101001
31010200211020010200220002
410223003033020011221
520230104343233223
6403302425512345
732125143223100
oct4530317100551
91120736120802
10321103102313
111141a736a424
12522949426b5
1324383c022b6
1411781b33037
1585451c4e28
hex4ac33c8169

321103102313 has 12 divisors (see below), whose sum is σ = 374345472852. Its totient is φ = 274628954880.

The previous prime is 321103102297. The next prime is 321103102513. The reversal of 321103102313 is 313201301123.

It can be written as a sum of positive squares in 2 ways, for example, as 116231901184 + 204871201129 = 340928^2 + 452627^2 .

It is not a de Polignac number, because 321103102313 - 24 = 321103102297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321103102013) 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 11 ways as a sum of consecutive naturals, for example, 7147328 + ... + 7192113.

It is an arithmetic number, because the mean of its divisors is an integer number (31195456071).

Almost surely, 2321103102313 is an apocalyptic number.

It is an amenable number.

321103102313 is a deficient number, since it is larger than the sum of its proper divisors (53242370539).

321103102313 is a wasteful number, since it uses less digits than its factorization.

321103102313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14339912 (or 14339905 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 321103102313 its reverse (313201301123), we get a palindrome (634304403436).

The spelling of 321103102313 in words is "three hundred twenty-one billion, one hundred three million, one hundred two thousand, three hundred thirteen".

Divisors: 1 7 49 457 3199 22393 14339441 100376087 702632609 6553124537 45871871759 321103102313