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80336987 is a prime number
BaseRepresentation
bin1001100100111…
…01100001011011
312121011112121222
410302131201123
5131031240422
611545522255
71663565423
oct462354133
9177145558
1080336987
1141391405
1222aa338b
131384a8a3
14a953483
1570bd842
hex4c9d85b

80336987 has 2 divisors, whose sum is σ = 80336988. Its totient is φ = 80336986.

The previous prime is 80336969. The next prime is 80337001. The reversal of 80336987 is 78963308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80336987 - 218 = 80074843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80336957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40168493 + 40168494.

It is an arithmetic number, because the mean of its divisors is an integer number (40168494).

Almost surely, 280336987 is an apocalyptic number.

80336987 is a deficient number, since it is larger than the sum of its proper divisors (1).

80336987 is an equidigital number, since it uses as much as digits as its factorization.

80336987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 80336987 is about 8963.0902595031. The cubic root of 80336987 is about 431.4911042172.

The spelling of 80336987 in words is "eighty million, three hundred thirty-six thousand, nine hundred eighty-seven".