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73058861 = 673108557
BaseRepresentation
bin1000101101011…
…00101000101101
312002110202220202
410112230220231
5122200340421
611125523245
71544663411
oct426545055
9162422822
1073058861
1138270227
1220573525
131219cbc5
1499bad41
15663210b
hex45aca2d

73058861 has 4 divisors (see below), whose sum is σ = 73168092. Its totient is φ = 72949632.

The previous prime is 73058813. The next prime is 73058873. The reversal of 73058861 is 16885037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16885037 = 131298849.

It can be written as a sum of positive squares in 2 ways, for example, as 28249225 + 44809636 = 5315^2 + 6694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73058861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73058561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53606 + ... + 54951.

It is an arithmetic number, because the mean of its divisors is an integer number (18292023).

Almost surely, 273058861 is an apocalyptic number.

It is an amenable number.

73058861 is a deficient number, since it is larger than the sum of its proper divisors (109231).

73058861 is a wasteful number, since it uses less digits than its factorization.

73058861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109230.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 73058861 is about 8547.4476307258. The cubic root of 73058861 is about 418.0462182665.

The spelling of 73058861 in words is "seventy-three million, fifty-eight thousand, eight hundred sixty-one".

Divisors: 1 673 108557 73058861