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23920165 = 55039511
BaseRepresentation
bin101101100111…
…1111000100101
31200000021022001
41123033320211
522110421130
62212405301
7410214043
oct133177045
950007261
1023920165
1112558635
128016831
134c56859
143269393
1521776ca
hex16cfe25

23920165 has 8 divisors (see below), whose sum is σ = 28764288. Its totient is φ = 19096080.

The previous prime is 23920163. The next prime is 23920177. The reversal of 23920165 is 56102932.

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

It is not a de Polignac number, because 23920165 - 21 = 23920163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23920163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241 + ... + 7270.

It is an arithmetic number, because the mean of its divisors is an integer number (3595536).

Almost surely, 223920165 is an apocalyptic number.

It is an amenable number.

23920165 is a deficient number, since it is larger than the sum of its proper divisors (4844123).

23920165 is an equidigital number, since it uses as much as digits as its factorization.

23920165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 23920165 is about 4890.8245726053. The cubic root of 23920165 is about 288.1297198876.

The spelling of 23920165 in words is "twenty-three million, nine hundred twenty thousand, one hundred sixty-five".

Divisors: 1 5 503 2515 9511 47555 4784033 23920165