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706980653 = 4621152993
BaseRepresentation
bin101010001000111…
…010101100101101
31211021022100010122
4222020322230231
52421441340103
6154053014325
723343144041
oct5210725455
91737270118
10706980653
11333088035
121789243a5
13b3614862
1469c74021
1542100b38
hex2a23ab2d

706980653 has 4 divisors (see below), whose sum is σ = 707138268. Its totient is φ = 706823040.

The previous prime is 706980643. The next prime is 706980661. The reversal of 706980653 is 356089607.

706980653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356089607 = 3071159901.

It can be written as a sum of positive squares in 2 ways, for example, as 233570089 + 473410564 = 15283^2 + 21758^2 .

It is a cyclic number.

It is not a de Polignac number, because 706980653 - 28 = 706980397 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 (706980643) 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, 71876 + ... + 81117.

It is an arithmetic number, because the mean of its divisors is an integer number (176784567).

Almost surely, 2706980653 is an apocalyptic number.

It is an amenable number.

706980653 is a deficient number, since it is larger than the sum of its proper divisors (157615).

706980653 is a wasteful number, since it uses less digits than its factorization.

706980653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157614.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 706980653 is about 26589.1077887168. The cubic root of 706980653 is about 890.8457444715.

The spelling of 706980653 in words is "seven hundred six million, nine hundred eighty thousand, six hundred fifty-three".

Divisors: 1 4621 152993 706980653