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708730213 = 37310211861
BaseRepresentation
bin101010001111100…
…101110101100101
31211101121020002011
4222033211311211
52422413331323
6154154314221
723364051562
oct5217456545
91741536064
10708730213
11334072554
12179428971
13b3aa7cb9
146a1ab869
154234920d
hex2a3e5d65

708730213 has 8 divisors (see below), whose sum is σ = 711708536. Its totient is φ = 705758400.

The previous prime is 708730193. The next prime is 708730241. The reversal of 708730213 is 312037807.

It can be written as a sum of positive squares in 4 ways, for example, as 4464769 + 704265444 = 2113^2 + 26538^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-708730213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (708730283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379903 + ... + 381763.

It is an arithmetic number, because the mean of its divisors is an integer number (88963567).

Almost surely, 2708730213 is an apocalyptic number.

It is an amenable number.

708730213 is a deficient number, since it is larger than the sum of its proper divisors (2978323).

708730213 is a wasteful number, since it uses less digits than its factorization.

708730213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 708730213 is about 26621.9873976381. The cubic root of 708730213 is about 891.5799956673.

The spelling of 708730213 in words is "seven hundred eight million, seven hundred thirty thousand, two hundred thirteen".

Divisors: 1 373 1021 1861 380833 694153 1900081 708730213