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8073381 = 32691127
BaseRepresentation
bin11110110011000010100101
3120012011121010
4132303002211
54031322011
6445012433
7125423361
oct36630245
916164533
108073381
114614718
122854119
131898964
1411022a1
15a971a6
hex7b30a5

8073381 has 4 divisors (see below), whose sum is σ = 10764512. Its totient is φ = 5382252.

The previous prime is 8073371. The next prime is 8073389. The reversal of 8073381 is 1833708.

8073381 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 8073381 - 25 = 8073349 is a prime.

It is a super-2 number, since 2×80733812 = 130358961542322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8073389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345561 + ... + 1345566.

It is an arithmetic number, because the mean of its divisors is an integer number (2691128).

Almost surely, 28073381 is an apocalyptic number.

It is an amenable number.

8073381 is a deficient number, since it is larger than the sum of its proper divisors (2691131).

8073381 is a wasteful number, since it uses less digits than its factorization.

8073381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691130.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 8073381 is about 2841.3695641363. The cubic root of 8073381 is about 200.6096480911.

The spelling of 8073381 in words is "eight million, seventy-three thousand, three hundred eighty-one".

Divisors: 1 3 2691127 8073381