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80408231 is a prime number
BaseRepresentation
bin1001100101011…
…10111010100111
312121022011100122
410302232322213
5131041030411
611551232155
71664313221
oct462567247
9177264318
1080408231
114142a992
1222b1865b
1313874147
14a971411
1570d49db
hex4caeea7

80408231 has 2 divisors, whose sum is σ = 80408232. Its totient is φ = 80408230.

The previous prime is 80408191. The next prime is 80408243. The reversal of 80408231 is 13280408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80408231 - 214 = 80391847 is a prime.

It is a super-2 number, since 2×804082312 = 12930967225098722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80408231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80408291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40204115 + 40204116.

It is an arithmetic number, because the mean of its divisors is an integer number (40204116).

Almost surely, 280408231 is an apocalyptic number.

80408231 is a deficient number, since it is larger than the sum of its proper divisors (1).

80408231 is an equidigital number, since it uses as much as digits as its factorization.

80408231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 80408231 is about 8967.0636777041. The cubic root of 80408231 is about 431.6186173782.

Adding to 80408231 its reverse (13280408), we get a palindrome (93688639).

The spelling of 80408231 in words is "eighty million, four hundred eight thousand, two hundred thirty-one".