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80663009 = 7108710601
BaseRepresentation
bin1001100111011…
…01000111100001
312121210002211212
410303231013201
5131122204014
612000515505
71666424060
oct463550741
9177702755
1080663009
1141594349
122301bb95
13139330bb
14a9da1d7
15713523e
hex4ced1e1

80663009 has 8 divisors (see below), whose sum is σ = 92279808. Its totient is φ = 69069600.

The previous prime is 80662991. The next prime is 80663027. The reversal of 80663009 is 90036608.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80662991) and next prime (80663027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80663009 - 212 = 80658913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80663039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (11534976).

Almost surely, 280663009 is an apocalyptic number.

It is an amenable number.

80663009 is a deficient number, since it is larger than the sum of its proper divisors (11616799).

80663009 is a wasteful number, since it uses less digits than its factorization.

80663009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 80663009 is about 8981.2587647835. The cubic root of 80663009 is about 432.0740060256.

The spelling of 80663009 in words is "eighty million, six hundred sixty-three thousand, nine".

Divisors: 1 7 1087 7609 10601 74207 11523287 80663009