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80307105 = 3538913763
BaseRepresentation
bin1001100100101…
…10001110100001
312121010000122020
410302112032201
5131024311410
611545132053
71663412334
oct462261641
9177100566
1080307105
1141370a0a
1222a8a029
131383a0c8
14a94661b
1570b4a70
hex4c963a1

80307105 has 16 divisors (see below), whose sum is σ = 128831040. Its totient is φ = 42717248.

The previous prime is 80307089. The next prime is 80307109. The reversal of 80307105 is 50170308.

It is a cyclic number.

It is not a de Polignac number, because 80307105 - 24 = 80307089 is a prime.

It is a super-2 number, since 2×803071052 = 12898462226962050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80307109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047 + ... + 12716.

It is an arithmetic number, because the mean of its divisors is an integer number (8051940).

Almost surely, 280307105 is an apocalyptic number.

It is an amenable number.

80307105 is a deficient number, since it is larger than the sum of its proper divisors (48523935).

80307105 is a wasteful number, since it uses less digits than its factorization.

80307105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 80307105 is about 8961.4231570661. The cubic root of 80307105 is about 431.4375986998.

The spelling of 80307105 in words is "eighty million, three hundred seven thousand, one hundred five".

Divisors: 1 3 5 15 389 1167 1945 5835 13763 41289 68815 206445 5353807 16061421 26769035 80307105