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80680367 = 320325189
BaseRepresentation
bin1001100111100…
…01010110101111
312121210222122202
410303301112233
5131123232432
612001132115
71666525505
oct463612657
9177728582
1080680367
11415a6399
122302a03b
131393ac81
14aa02675
15713a462
hex4cf15af

80680367 has 4 divisors (see below), whose sum is σ = 80708760. Its totient is φ = 80651976.

The previous prime is 80680339. The next prime is 80680373. The reversal of 80680367 is 76308608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80680367 - 210 = 80679343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80680367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80680307) 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, 9392 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (20177190).

Almost surely, 280680367 is an apocalyptic number.

80680367 is a deficient number, since it is larger than the sum of its proper divisors (28393).

80680367 is a wasteful number, since it uses less digits than its factorization.

80680367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28392.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 80680367 is about 8982.2250584140. The cubic root of 80680367 is about 432.1049966981.

The spelling of 80680367 in words is "eighty million, six hundred eighty thousand, three hundred sixty-seven".

Divisors: 1 3203 25189 80680367