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23506073 = 73322001
BaseRepresentation
bin101100110101…
…0110010011001
31122020020021022
41121222302121
522004143243
62155452225
7403540553
oct131526231
948206238
1023506073
11122a5508
127a57075
134b40226
14319c4d3
1520e4b68
hex166ac99

23506073 has 4 divisors (see below), whose sum is σ = 23828148. Its totient is φ = 23184000.

The previous prime is 23506061. The next prime is 23506123. The reversal of 23506073 is 37060532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5161984 + 18344089 = 2272^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 23506073 - 26 = 23506009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23506003) 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 3 ways as a sum of consecutive naturals, for example, 160928 + ... + 161073.

It is an arithmetic number, because the mean of its divisors is an integer number (5957037).

Almost surely, 223506073 is an apocalyptic number.

It is an amenable number.

23506073 is a deficient number, since it is larger than the sum of its proper divisors (322075).

23506073 is an equidigital number, since it uses as much as digits as its factorization.

23506073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322074.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 23506073 is about 4848.3061990761. The cubic root of 23506073 is about 286.4573875163.

The spelling of 23506073 in words is "twenty-three million, five hundred six thousand, seventy-three".

Divisors: 1 73 322001 23506073