Search a number
-
+
80024869 is a prime number
BaseRepresentation
bin1001100010100…
…01010100100101
312120120200111001
410301101110211
5130441243434
611535113301
71661125441
oct461212445
9176520431
1080024869
1141198961
1222972831
131376b7c2
14a8b1821
15705b114
hex4c51525

80024869 has 2 divisors, whose sum is σ = 80024870. Its totient is φ = 80024868.

The previous prime is 80024839. The next prime is 80024873. The reversal of 80024869 is 96842008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59213025 + 20811844 = 7695^2 + 4562^2 .

It is a cyclic number.

It is not a de Polignac number, because 80024869 - 25 = 80024837 is a prime.

It is a super-2 number, since 2×800248692 = 12807959316934322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80024839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40012434 + 40012435.

It is an arithmetic number, because the mean of its divisors is an integer number (40012435).

Almost surely, 280024869 is an apocalyptic number.

It is an amenable number.

80024869 is a deficient number, since it is larger than the sum of its proper divisors (1).

80024869 is an equidigital number, since it uses as much as digits as its factorization.

80024869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80024869 is about 8945.6620213375. The cubic root of 80024869 is about 430.9315822442.

The spelling of 80024869 in words is "eighty million, twenty-four thousand, eight hundred sixty-nine".