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73112273 = 1323311307
BaseRepresentation
bin1000101101110…
…01101011010001
312002120111011222
410112321223101
5122204043043
611131014425
71545305213
oct426715321
9162514158
1073112273
11382a7373
122059a415
13121bb300
1499d25b3
156642d68
hex45b9ad1

73112273 has 12 divisors (see below), whose sum is σ = 79468848. Its totient is φ = 67232880.

The previous prime is 73112267. The next prime is 73112287. The reversal of 73112273 is 37221137.

It is not a de Polignac number, because 73112273 - 214 = 73095889 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73112233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55286 + ... + 56592.

It is an arithmetic number, because the mean of its divisors is an integer number (6622404).

Almost surely, 273112273 is an apocalyptic number.

It is an amenable number.

73112273 is a deficient number, since it is larger than the sum of its proper divisors (6356575).

73112273 is a wasteful number, since it uses less digits than its factorization.

73112273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 1651 counting only the distinct ones).

The product of its digits is 1764, while the sum is 26.

The square root of 73112273 is about 8550.5715013676. The cubic root of 73112273 is about 418.1480687706.

The spelling of 73112273 in words is "seventy-three million, one hundred twelve thousand, two hundred seventy-three".

Divisors: 1 13 169 331 1307 4303 16991 55939 220883 432617 5624021 73112273