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80311099 = 1143916631
BaseRepresentation
bin1001100100101…
…11001100111011
312121010020010011
410302113030323
5131024423344
611545202351
71663430101
oct462271473
9177106104
1080311099
1141373a10
1222a903b7
131383bb7b
14a947c71
1570b5d34
hex4c9733b

80311099 has 8 divisors (see below), whose sum is σ = 87816960. Its totient is φ = 72839400.

The previous prime is 80311093. The next prime is 80311123. The reversal of 80311099 is 99011308.

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 80311099 - 25 = 80311067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80311099.

It is not an unprimeable number, because it can be changed into a prime (80311093) 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, 3487 + ... + 13144.

It is an arithmetic number, because the mean of its divisors is an integer number (10977120).

Almost surely, 280311099 is an apocalyptic number.

80311099 is a deficient number, since it is larger than the sum of its proper divisors (7505861).

80311099 is a wasteful number, since it uses less digits than its factorization.

80311099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17081.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 80311099 is about 8961.6459983644. The cubic root of 80311099 is about 431.4447509653. Note that the first 3 decimals are identical.

The spelling of 80311099 in words is "eighty million, three hundred eleven thousand, ninety-nine".

Divisors: 1 11 439 4829 16631 182941 7301009 80311099