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80735066 = 2199972131
BaseRepresentation
bin1001100111111…
…10101101011010
312121220202200122
410303332231122
5131132010231
612002233242
72000144126
oct463765532
9177822618
1080735066
11416334a5
1223055822
1313959b39
14aa18586
15714b77b
hex4cfeb5a

80735066 has 16 divisors (see below), whose sum is σ = 127664160. Its totient is φ = 38186640.

The previous prime is 80735063. The next prime is 80735071. The reversal of 80735066 is 66053708.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80735063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36821 + ... + 38951.

It is an arithmetic number, because the mean of its divisors is an integer number (7979010).

Almost surely, 280735066 is an apocalyptic number.

80735066 is a deficient number, since it is larger than the sum of its proper divisors (46929094).

80735066 is a wasteful number, since it uses less digits than its factorization.

80735066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 80735066 is about 8985.2693893951. The cubic root of 80735066 is about 432.2026262811.

The spelling of 80735066 in words is "eighty million, seven hundred thirty-five thousand, sixty-six".

Divisors: 1 2 19 38 997 1994 2131 4262 18943 37886 40489 80978 2124607 4249214 40367533 80735066