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8381323 = 171134363
BaseRepresentation
bin11111111110001110001011
3120202211000101
4133332032023
54121200243
6455350231
7131145226
oct37761613
916684011
108381323
114805015
122982377
131975b82
1411825bd
15b0854d
hex7fe38b

8381323 has 8 divisors (see below), whose sum is σ = 8954928. Its totient is φ = 7816704.

The previous prime is 8381311. The next prime is 8381333. The reversal of 8381323 is 3231838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8381323 - 25 = 8381291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8381291 and 8381300.

It is not an unprimeable number, because it can be changed into a prime (8381333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 4102.

It is an arithmetic number, because the mean of its divisors is an integer number (1119366).

Almost surely, 28381323 is an apocalyptic number.

8381323 is a deficient number, since it is larger than the sum of its proper divisors (573605).

8381323 is a wasteful number, since it uses less digits than its factorization.

8381323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493.

The product of its digits is 3456, while the sum is 28.

The square root of 8381323 is about 2895.0514675909. The cubic root of 8381323 is about 203.1284989693.

It can be divided in two parts, 83 and 81323, that added together give a triangular number (81406 = T403).

The spelling of 8381323 in words is "eight million, three hundred eighty-one thousand, three hundred twenty-three".

Divisors: 1 17 113 1921 4363 74171 493019 8381323