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80306105 = 5111460111
BaseRepresentation
bin1001100100101…
…01111110111001
312121002222021012
410302111332321
5131024243410
611545123305
71663406405
oct462257671
9177088235
1080306105
1141370190
1222a89535
1313839809
14a946105
1570b4605
hex4c95fb9

80306105 has 8 divisors (see below), whose sum is σ = 105128064. Its totient is φ = 58404400.

The previous prime is 80306101. The next prime is 80306117. The reversal of 80306105 is 50160308.

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

It is not a de Polignac number, because 80306105 - 22 = 80306101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80306101) 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, 730001 + ... + 730110.

It is an arithmetic number, because the mean of its divisors is an integer number (13141008).

Almost surely, 280306105 is an apocalyptic number.

It is an amenable number.

80306105 is a deficient number, since it is larger than the sum of its proper divisors (24821959).

80306105 is a wasteful number, since it uses less digits than its factorization.

80306105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460127.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 80306105 is about 8961.3673621831. The cubic root of 80306105 is about 431.4358079102.

The spelling of 80306105 in words is "eighty million, three hundred six thousand, one hundred five".

Divisors: 1 5 11 55 1460111 7300555 16061221 80306105