Search a number
-
+
8083540 = 225404177
BaseRepresentation
bin11110110101100001010100
3120012200112101
4132311201110
54032133130
6445131444
7125465113
oct36654124
916180471
108083540
114621313
122859b84
1318a047a
141105c7a
15a9a1ca
hex7b5854

8083540 has 12 divisors (see below), whose sum is σ = 16975476. Its totient is φ = 3233408.

The previous prime is 8083477. The next prime is 8083541. The reversal of 8083540 is 453808.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 5779216 = 1518^2 + 2404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8083499 and 8083508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8083541) 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, 202069 + ... + 202108.

It is an arithmetic number, because the mean of its divisors is an integer number (1414623).

Almost surely, 28083540 is an apocalyptic number.

It is an amenable number.

8083540 is an abundant number, since it is smaller than the sum of its proper divisors (8891936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8083540 is a wasteful number, since it uses less digits than its factorization.

8083540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404186 (or 404184 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8083540 is about 2843.1566963500. The cubic root of 8083540 is about 200.6937573876.

The spelling of 8083540 in words is "eight million, eighty-three thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 404177 808354 1616708 2020885 4041770 8083540