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80344319 = 1125912819
BaseRepresentation
bin1001100100111…
…11010011111111
312121011220200112
410302133103333
5131032004234
611550020235
71663625666
oct462372377
9177156615
1080344319
1141396970
1222aa767b
1313851023
14a955ddd
1570c0ace
hex4c9f4ff

80344319 has 8 divisors (see below), whose sum is σ = 87713280. Its totient is φ = 72986200.

The previous prime is 80344309. The next prime is 80344333. The reversal of 80344319 is 91344308.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80344319 is a prime.

It is a super-2 number, since 2×803443192 = 12910419191147522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80344309) 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, 27092 + ... + 29910.

It is an arithmetic number, because the mean of its divisors is an integer number (10964160).

Almost surely, 280344319 is an apocalyptic number.

80344319 is a deficient number, since it is larger than the sum of its proper divisors (7368961).

80344319 is a wasteful number, since it uses less digits than its factorization.

80344319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 80344319 is about 8963.4992608914. The cubic root of 80344319 is about 431.5042305768.

The spelling of 80344319 in words is "eighty million, three hundred forty-four thousand, three hundred nineteen".

Divisors: 1 11 2591 2819 28501 31009 7304029 80344319