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76304145 = 3543281421
BaseRepresentation
bin1001000110001…
…00111100010001
312022120122121110
410203010330101
5124013213040
611323243533
71614401031
oct443047421
9168518543
1076304145
113a087485
12216795a9
1312a680a8
14a1c38c1
156a73980
hex48c4f11

76304145 has 32 divisors (see below), whose sum is σ = 125668224. Its totient is φ = 39513600.

The previous prime is 76304117. The next prime is 76304159. The reversal of 76304145 is 54140367.

It is not a de Polignac number, because 76304145 - 213 = 76295953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181035 + ... + 181455.

It is an arithmetic number, because the mean of its divisors is an integer number (3927132).

Almost surely, 276304145 is an apocalyptic number.

It is an amenable number.

76304145 is a deficient number, since it is larger than the sum of its proper divisors (49364079).

76304145 is a wasteful number, since it uses less digits than its factorization.

76304145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 76304145 is about 8735.2243817775. The cubic root of 76304145 is about 424.1466522044.

The spelling of 76304145 in words is "seventy-six million, three hundred four thousand, one hundred forty-five".

Divisors: 1 3 5 15 43 129 215 281 421 645 843 1263 1405 2105 4215 6315 12083 18103 36249 54309 60415 90515 118301 181245 271545 354903 591505 1774515 5086943 15260829 25434715 76304145