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80150009 = 233484783
BaseRepresentation
bin1001100011011…
…11110111111001
312120211001010212
410301233313321
5131004300014
611541520505
71662156332
oct461576771
9176731125
1080150009
1141273985
1222a13135
13137b3754
14a905289
15708323e
hex4c6fdf9

80150009 has 4 divisors (see below), whose sum is σ = 83634816. Its totient is φ = 76665204.

The previous prime is 80149943. The next prime is 80150011. The reversal of 80150009 is 90005108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80150009 - 28 = 80149753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 3484783 = 80150009 / (8 + 0 + 1 + 5 + 0 + 0 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80150099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742369 + ... + 1742414.

It is an arithmetic number, because the mean of its divisors is an integer number (20908704).

Almost surely, 280150009 is an apocalyptic number.

It is an amenable number.

80150009 is a deficient number, since it is larger than the sum of its proper divisors (3484807).

80150009 is a wasteful number, since it uses less digits than its factorization.

80150009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484806.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 80150009 is about 8952.6537406514. The cubic root of 80150009 is about 431.1560903406.

The spelling of 80150009 in words is "eighty million, one hundred fifty thousand, nine".

Divisors: 1 23 3484783 80150009