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80146831 is a prime number
BaseRepresentation
bin1001100011011…
…11000110001111
312120210212210011
410301233012033
5131004144311
611541454051
71662144142
oct461570617
9176725704
1080146831
1141271556
1222a11327
13137b217b
14a904059
157082321
hex4c6f18f

80146831 has 2 divisors, whose sum is σ = 80146832. Its totient is φ = 80146830.

The previous prime is 80146813. The next prime is 80146849. The reversal of 80146831 is 13864108.

Together with previous prime (80146813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (80146813) and next prime (80146849).

It is a cyclic number.

It is not a de Polignac number, because 80146831 - 217 = 80015759 is a prime.

It is a super-2 number, since 2×801468312 = 12847029038685122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80146793 and 80146802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80146861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40073415 + 40073416.

It is an arithmetic number, because the mean of its divisors is an integer number (40073416).

Almost surely, 280146831 is an apocalyptic number.

80146831 is a deficient number, since it is larger than the sum of its proper divisors (1).

80146831 is an equidigital number, since it uses as much as digits as its factorization.

80146831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 80146831 is about 8952.4762496194. The cubic root of 80146831 is about 431.1503917255.

The spelling of 80146831 in words is "eighty million, one hundred forty-six thousand, eight hundred thirty-one".