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73083145 = 533144159
BaseRepresentation
bin1000101101100…
…10100100001001
312002112000020011
410112302210021
5122202130040
611130231521
71545124252
oct426624411
9162460204
1073083145
11382874a3
12205855a1
13121aac85
1499c5b29
1566393ea
hex45b2909

73083145 has 8 divisors (see below), whose sum is σ = 87966720. Its totient is φ = 58288560.

The previous prime is 73083133. The next prime is 73083163. The reversal of 73083145 is 54138037.

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

It is not a de Polignac number, because 73083145 - 25 = 73083113 is a prime.

It is a super-2 number, since 2×730831452 = 10682292166182050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 20425 + ... + 23734.

It is an arithmetic number, because the mean of its divisors is an integer number (10995840).

Almost surely, 273083145 is an apocalyptic number.

It is an amenable number.

73083145 is a deficient number, since it is larger than the sum of its proper divisors (14883575).

73083145 is a wasteful number, since it uses less digits than its factorization.

73083145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44495.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 73083145 is about 8548.8680537250. The cubic root of 73083145 is about 418.0925311967.

The spelling of 73083145 in words is "seventy-three million, eighty-three thousand, one hundred forty-five".

Divisors: 1 5 331 1655 44159 220795 14616629 73083145