Search a number
-
+
32313121 = 64749943
BaseRepresentation
bin111101101000…
…0111100100001
32020210200021021
41323100330201
531233004441
63112325441
7541441231
oct173207441
966720237
1032313121
1117270365
12a9a3881
136904ab9
144411cc1
152c843d1
hex1ed0f21

32313121 has 4 divisors (see below), whose sum is σ = 32363712. Its totient is φ = 32262532.

The previous prime is 32313119. The next prime is 32313143. The reversal of 32313121 is 12131323.

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.

It is a cyclic number.

It is not a de Polignac number, because 32313121 - 21 = 32313119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32313095 and 32313104.

It is not an unprimeable number, because it can be changed into a prime (32313101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24325 + ... + 25618.

It is an arithmetic number, because the mean of its divisors is an integer number (8090928).

Almost surely, 232313121 is an apocalyptic number.

It is an amenable number.

32313121 is a deficient number, since it is larger than the sum of its proper divisors (50591).

32313121 is an equidigital number, since it uses as much as digits as its factorization.

32313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50590.

The product of its digits is 108, while the sum is 16.

The square root of 32313121 is about 5684.4631232861. The cubic root of 32313121 is about 318.5123690369.

Adding to 32313121 its reverse (12131323), we get a palindrome (44444444).

The spelling of 32313121 in words is "thirty-two million, three hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 647 49943 32313121