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23538117 = 347971721
BaseRepresentation
bin101100111001…
…0100111000101
31122021212020010
41121302213011
522011204432
62200300433
7404033151
oct131624705
948255203
1023538117
1112317599
127a71719
134b519a5
1431aa061
1520ee3cc
hex16729c5

23538117 has 16 divisors (see below), whose sum is σ = 32401152. Its totient is φ = 15191040.

The previous prime is 23538103. The next prime is 23538127. The reversal of 23538117 is 71183532.

It is not a de Polignac number, because 23538117 - 210 = 23537093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23538127) 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 15 ways as a sum of consecutive naturals, for example, 12817 + ... + 14537.

It is an arithmetic number, because the mean of its divisors is an integer number (2025072).

Almost surely, 223538117 is an apocalyptic number.

It is an amenable number.

23538117 is a deficient number, since it is larger than the sum of its proper divisors (8863035).

23538117 is a wasteful number, since it uses less digits than its factorization.

23538117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868.

The product of its digits is 5040, while the sum is 30.

The square root of 23538117 is about 4851.6097328619. The cubic root of 23538117 is about 286.5874967660.

The spelling of 23538117 in words is "twenty-three million, five hundred thirty-eight thousand, one hundred seventeen".

Divisors: 1 3 47 97 141 291 1721 4559 5163 13677 80887 166937 242661 500811 7846039 23538117