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73081705 = 516787523
BaseRepresentation
bin1000101101100…
…10001101101001
312002111221020211
410112302031221
5122202103310
611130221121
71545120124
oct426621551
9162457224
1073081705
1138286404
12205847a1
13121aa418
1499c53bb
156638c8a
hex45b2369

73081705 has 8 divisors (see below), whose sum is σ = 88224192. Its totient is φ = 58114608.

The previous prime is 73081703. The next prime is 73081709. The reversal of 73081705 is 50718037.

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 73081705 - 21 = 73081703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73081703) 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 7 ways as a sum of consecutive naturals, for example, 42927 + ... + 44596.

It is an arithmetic number, because the mean of its divisors is an integer number (11028024).

Almost surely, 273081705 is an apocalyptic number.

It is an amenable number.

73081705 is a deficient number, since it is larger than the sum of its proper divisors (15142487).

73081705 is a wasteful number, since it uses less digits than its factorization.

73081705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87695.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 73081705 is about 8548.7838316336. The cubic root of 73081705 is about 418.0897852047.

The spelling of 73081705 in words is "seventy-three million, eighty-one thousand, seven hundred five".

Divisors: 1 5 167 835 87523 437615 14616341 73081705