Search a number
-
+
80074669 is a prime number
BaseRepresentation
bin1001100010111…
…01011110101101
312120200012210111
410301131132231
5130444342134
611540140021
71661423563
oct461353655
9176605714
1080074669
1141222314
1222997611
131378837c
14a8c5a33
15706ac64
hex4c5d7ad

80074669 has 2 divisors, whose sum is σ = 80074670. Its totient is φ = 80074668.

The previous prime is 80074651. The next prime is 80074717. The reversal of 80074669 is 96647008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 31214569 = 6990^2 + 5587^2 .

It is a cyclic number.

It is not a de Polignac number, because 80074669 - 27 = 80074541 is a prime.

It is a super-2 number, since 2×800746692 = 12823905230919122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80074609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40037334 + 40037335.

It is an arithmetic number, because the mean of its divisors is an integer number (40037335).

Almost surely, 280074669 is an apocalyptic number.

It is an amenable number.

80074669 is a deficient number, since it is larger than the sum of its proper divisors (1).

80074669 is an equidigital number, since it uses as much as digits as its factorization.

80074669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 80074669 is about 8948.4450604560. The cubic root of 80074669 is about 431.0209542230.

The spelling of 80074669 in words is "eighty million, seventy-four thousand, six hundred sixty-nine".