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32001313 = 47680879
BaseRepresentation
bin111101000010…
…0110100100001
32020012211112211
41322010310201
531143020223
63101522121
7536002201
oct172046441
966184484
1032001313
1117078073
12a873341
136825bb6
144370401
152c21d0d
hex1e84d21

32001313 has 4 divisors (see below), whose sum is σ = 32682240. Its totient is φ = 31320388.

The previous prime is 32001311. The next prime is 32001317. The reversal of 32001313 is 31310023.

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: 31310023 = 122325601.

It is a cyclic number.

It is not a de Polignac number, because 32001313 - 21 = 32001311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32001293 and 32001302.

It is not an unprimeable number, because it can be changed into a prime (32001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340393 + ... + 340486.

It is an arithmetic number, because the mean of its divisors is an integer number (8170560).

Almost surely, 232001313 is an apocalyptic number.

It is an amenable number.

32001313 is a deficient number, since it is larger than the sum of its proper divisors (680927).

32001313 is an equidigital number, since it uses as much as digits as its factorization.

32001313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680926.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 32001313 is about 5656.9703022024. The cubic root of 32001313 is about 317.4845525375.

Adding to 32001313 its reverse (31310023), we get a palindrome (63311336).

The spelling of 32001313 in words is "thirty-two million, one thousand, three hundred thirteen".

Divisors: 1 47 680879 32001313