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73074143 = 174791457
BaseRepresentation
bin1000101101100…
…00010111011111
312002111112212202
410112300113133
5122201333033
611130122115
71545056102
oct426602737
9162445782
1073074143
113828075a
122058033b
13121a6b4c
1499c2739
1566368e8
hex45b05df

73074143 has 8 divisors (see below), whose sum is σ = 79019712. Its totient is φ = 67311616.

The previous prime is 73074139. The next prime is 73074163. The reversal of 73074143 is 34147037.

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

It is a cyclic number.

It is not a de Polignac number, because 73074143 - 22 = 73074139 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 (73074163) 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, 44930 + ... + 46527.

It is an arithmetic number, because the mean of its divisors is an integer number (9877464).

Almost surely, 273074143 is an apocalyptic number.

73074143 is a deficient number, since it is larger than the sum of its proper divisors (5945569).

73074143 is a wasteful number, since it uses less digits than its factorization.

73074143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91521.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 73074143 is about 8548.3415350581. The cubic root of 73074143 is about 418.0753643406.

The spelling of 73074143 in words is "seventy-three million, seventy-four thousand, one hundred forty-three".

Divisors: 1 17 47 799 91457 1554769 4298479 73074143