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536311321 = 7213841933
BaseRepresentation
bin11111111101110…
…111011000011001
31101101011102211021
4133331313120121
52044243430241
6125115002441
716201366600
oct3775673031
91341142737
10536311321
112558086a7
1212b739421
13871599a0
1451328a37
153213c0d1
hex1ff77619

536311321 has 12 divisors (see below), whose sum is σ = 671863332. Its totient is φ = 424333728.

The previous prime is 536311301. The next prime is 536311327. The reversal of 536311321 is 123113635.

It can be written as a sum of positive squares in 2 ways, for example, as 224400400 + 311910921 = 14980^2 + 17661^2 .

It is not a de Polignac number, because 536311321 - 29 = 536310809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (536311327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420330 + ... + 421603.

It is an arithmetic number, because the mean of its divisors is an integer number (55988611).

Almost surely, 2536311321 is an apocalyptic number.

It is an amenable number.

536311321 is a deficient number, since it is larger than the sum of its proper divisors (135552011).

536311321 is a wasteful number, since it uses less digits than its factorization.

536311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841960 (or 841953 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 536311321 is about 23158.3963391250. The cubic root of 536311321 is about 812.4668589559.

Adding to 536311321 its reverse (123113635), we get a palindrome (659424956).

The spelling of 536311321 in words is "five hundred thirty-six million, three hundred eleven thousand, three hundred twenty-one".

Divisors: 1 7 13 49 91 637 841933 5893531 10945129 41254717 76615903 536311321