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706031 = 2330697
BaseRepresentation
bin10101100010111101111
31022212111022
42230113233
5140043111
623044355
76000254
oct2542757
91285438
10706031
114424a7
122a06bb
131b9491
1414542b
15de2db
hexac5ef

706031 has 4 divisors (see below), whose sum is σ = 736752. Its totient is φ = 675312.

The previous prime is 706019. The next prime is 706033. The reversal of 706031 is 130607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130607 = 131997.

It is a cyclic number.

It is not a de Polignac number, because 706031 - 26 = 705967 is a prime.

It is a super-2 number, since 2×7060312 = 996959545922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 706031.

It is not an unprimeable number, because it can be changed into a prime (706033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15326 + ... + 15371.

It is an arithmetic number, because the mean of its divisors is an integer number (184188).

2706031 is an apocalyptic number.

706031 is a deficient number, since it is larger than the sum of its proper divisors (30721).

706031 is a wasteful number, since it uses less digits than its factorization.

706031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30720.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 706031 is about 840.2565084544. The cubic root of 706031 is about 89.0446689039.

Adding to 706031 its reverse (130607), we get a palindrome (836638).

The spelling of 706031 in words is "seven hundred six thousand, thirty-one".

Divisors: 1 23 30697 706031