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80196911 is a prime number
BaseRepresentation
bin1001100011110…
…11010100101111
312120220102110222
410301323110233
5131012300121
611542521555
71662443144
oct461732457
9176812428
1080196911
11412a6143
1222a362bb
13137cbbc2
14a9183cb
1570920ab
hex4c7b52f

80196911 has 2 divisors, whose sum is σ = 80196912. Its totient is φ = 80196910.

The previous prime is 80196887. The next prime is 80196913. The reversal of 80196911 is 11969108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80196911 - 210 = 80195887 is a prime.

Together with 80196913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80196913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40098455 + 40098456.

It is an arithmetic number, because the mean of its divisors is an integer number (40098456).

Almost surely, 280196911 is an apocalyptic number.

80196911 is a deficient number, since it is larger than the sum of its proper divisors (1).

80196911 is an equidigital number, since it uses as much as digits as its factorization.

80196911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 80196911 is about 8955.2728043315. The cubic root of 80196911 is about 431.2401749214.

The spelling of 80196911 in words is "eighty million, one hundred ninety-six thousand, nine hundred eleven".