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8081738 = 271394153
BaseRepresentation
bin11110110101000101001010
3120012121001122
4132311011022
54032103423
6445115242
7125456630
oct36650512
916177048
108081738
11461aa25
122858b22
13189c6c2
141105350
15a998c8
hex7b514a

8081738 has 16 divisors (see below), whose sum is σ = 13957440. Its totient is φ = 3437856.

The previous prime is 8081737. The next prime is 8081747. The reversal of 8081738 is 8371808.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8081698 and 8081707.

It is not an unprimeable number, because it can be changed into a prime (8081737) 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, 131 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (872340).

Almost surely, 28081738 is an apocalyptic number.

8081738 is a deficient number, since it is larger than the sum of its proper divisors (5875702).

8081738 is a wasteful number, since it uses less digits than its factorization.

8081738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 8081738 is about 2842.8397774057. The cubic root of 8081738 is about 200.6788432523.

It can be divided in two parts, 80 and 81738, that added together give a palindrome (81818).

The spelling of 8081738 in words is "eight million, eighty-one thousand, seven hundred thirty-eight".

Divisors: 1 2 7 14 139 278 973 1946 4153 8306 29071 58142 577267 1154534 4040869 8081738