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23672109 = 3171732683
BaseRepresentation
bin101101001001…
…1010100101101
31122112200000210
41122103110231
522030001414
62203213033
7405131616
oct132232455
948480023
1023672109
11123a922a
127b17179
134b9a986
143202c0d
152128e59
hex169352d

23672109 has 16 divisors (see below), whose sum is σ = 33625152. Its totient is φ = 14761728.

The previous prime is 23672071. The next prime is 23672123. The reversal of 23672109 is 90127632.

It is not a de Polignac number, because 23672109 - 27 = 23671981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23672179) 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, 7482 + ... + 10164.

It is an arithmetic number, because the mean of its divisors is an integer number (2101572).

Almost surely, 223672109 is an apocalyptic number.

It is an amenable number.

23672109 is a deficient number, since it is larger than the sum of its proper divisors (9953043).

23672109 is a wasteful number, since it uses less digits than its factorization.

23672109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 23672109 is about 4865.3991614255. The cubic root of 23672109 is about 287.1302730627.

The spelling of 23672109 in words is "twenty-three million, six hundred seventy-two thousand, one hundred nine".

Divisors: 1 3 17 51 173 519 2683 2941 8049 8823 45611 136833 464159 1392477 7890703 23672109