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707081 = 1741593
BaseRepresentation
bin10101100101000001001
31022220221012
42230220021
5140111311
623053305
76003314
oct2545011
91286835
10707081
11443271
122a1235
131b9abb
1414597b
15de78b
hexaca09

707081 has 4 divisors (see below), whose sum is σ = 748692. Its totient is φ = 665472.

The previous prime is 707071. The next prime is 707099. The reversal of 707081 is 180707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180707 = 1571151.

It can be written as a sum of positive squares in 2 ways, for example, as 341056 + 366025 = 584^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 707081 - 218 = 444937 is a prime.

It is a super-2 number, since 2×7070812 = 999927081122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (707011) 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, 20780 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (187173).

2707081 is an apocalyptic number.

It is an amenable number.

707081 is a deficient number, since it is larger than the sum of its proper divisors (41611).

707081 is a wasteful number, since it uses less digits than its factorization.

707081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41610.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 707081 is about 840.8810855287. The cubic root of 707081 is about 89.0887890589.

Adding to 707081 its reverse (180707), we get a palindrome (887788).

The spelling of 707081 in words is "seven hundred seven thousand, eighty-one".

Divisors: 1 17 41593 707081