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73115633 = 1132332777
BaseRepresentation
bin1000101101110…
…10011111110001
312002120122210102
410112322133301
5122204200013
611131042145
71545321053
oct426723761
9162518712
1073115633
11382a9948
12205a0355
13121bc9b6
1499d38d3
156643d58
hex45ba7f1

73115633 has 8 divisors (see below), whose sum is σ = 74105928. Its totient is φ = 72131584.

The previous prime is 73115621. The next prime is 73115671. The reversal of 73115633 is 33651137.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5678689 + 67436944 = 2383^2 + 8212^2 .

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 73115633 - 28 = 73115377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73115596 and 73115605.

It is not an unprimeable number, because it can be changed into a prime (73115333) 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, 24941 + ... + 27717.

It is an arithmetic number, because the mean of its divisors is an integer number (9263241).

Almost surely, 273115633 is an apocalyptic number.

It is an amenable number.

73115633 is a deficient number, since it is larger than the sum of its proper divisors (990295).

73115633 is a wasteful number, since it uses less digits than its factorization.

73115633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123.

The product of its digits is 5670, while the sum is 29.

The square root of 73115633 is about 8550.7679772053. The cubic root of 73115633 is about 418.1544742432.

The spelling of 73115633 in words is "seventy-three million, one hundred fifteen thousand, six hundred thirty-three".

Divisors: 1 113 233 2777 26329 313801 647041 73115633