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5972878649 is a prime number
BaseRepresentation
bin1011001000000001…
…01110010100111001
3120102021000200011202
411210000232110321
544213024104044
62424403303545
7301004426243
oct54400562471
916367020152
105972878649
112595597151
1211a837abb5
1374259112a
1440938d093
1524e57bc4e
hex16402e539

5972878649 has 2 divisors, whose sum is σ = 5972878650. Its totient is φ = 5972878648.

The previous prime is 5972878633. The next prime is 5972878663. The reversal of 5972878649 is 9468782795.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3035238649 + 2937640000 = 55093^2 + 54200^2 .

It is a cyclic number.

It is not a de Polignac number, because 5972878649 - 24 = 5972878633 is a prime.

It is not a weakly prime, because it can be changed into another prime (5972878669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2986439324 + 2986439325.

It is an arithmetic number, because the mean of its divisors is an integer number (2986439325).

Almost surely, 25972878649 is an apocalyptic number.

It is an amenable number.

5972878649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5972878649 is an equidigital number, since it uses as much as digits as its factorization.

5972878649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 65.

The square root of 5972878649 is about 77284.4010716263. The cubic root of 5972878649 is about 1814.3785256741.

The spelling of 5972878649 in words is "five billion, nine hundred seventy-two million, eight hundred seventy-eight thousand, six hundred forty-nine".