Search a number
-
+
80419387 is a prime number
BaseRepresentation
bin1001100101100…
…01101000111011
312121022201122211
410302301220323
5131041410022
611551355551
71664360566
oct462615073
9177281584
1080419387
1141438304
1222b22bb7
1313879249
14a9754dd
1570d7e77
hex4cb1a3b

80419387 has 2 divisors, whose sum is σ = 80419388. Its totient is φ = 80419386.

The previous prime is 80419379. The next prime is 80419439. The reversal of 80419387 is 78391408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80419387 - 23 = 80419379 is a prime.

It is not a weakly prime, because it can be changed into another prime (80419307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40209693 + 40209694.

It is an arithmetic number, because the mean of its divisors is an integer number (40209694).

Almost surely, 280419387 is an apocalyptic number.

80419387 is a deficient number, since it is larger than the sum of its proper divisors (1).

80419387 is an equidigital number, since it uses as much as digits as its factorization.

80419387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 80419387 is about 8967.6857103714. The cubic root of 80419387 is about 431.6385776674.

The spelling of 80419387 in words is "eighty million, four hundred nineteen thousand, three hundred eighty-seven".