Search a number
-
+
80377471 is a prime number
BaseRepresentation
bin1001100101001…
…11011001111111
312121020121011101
410302213121333
5131034034341
611550433531
71664124436
oct462473177
9177217141
1080377471
1141409869
1222b028a7
1313863145
14a96411d
1570ca831
hex4ca767f

80377471 has 2 divisors, whose sum is σ = 80377472. Its totient is φ = 80377470.

The previous prime is 80377459. The next prime is 80377481. The reversal of 80377471 is 17477308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80377471 - 211 = 80375423 is a prime.

It is a super-3 number, since 3×803774713 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80377471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80377481) 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 as a sum of consecutive naturals, namely, 40188735 + 40188736.

It is an arithmetic number, because the mean of its divisors is an integer number (40188736).

Almost surely, 280377471 is an apocalyptic number.

80377471 is a deficient number, since it is larger than the sum of its proper divisors (1).

80377471 is an equidigital number, since it uses as much as digits as its factorization.

80377471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 80377471 is about 8965.3483479450. The cubic root of 80377471 is about 431.5635720931.

The spelling of 80377471 in words is "eighty million, three hundred seventy-seven thousand, four hundred seventy-one".