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23073165 = 3251730161
BaseRepresentation
bin101100000000…
…1000110001101
31121102020102200
41120001012031
521401320130
62142312113
7400055463
oct130010615
947366380
1023073165
111202a235
127888639
134a1b17b
1430c8833
15205b760
hex160118d

23073165 has 24 divisors (see below), whose sum is σ = 42347448. Its totient is φ = 11581440.

The previous prime is 23073157. The next prime is 23073187. The reversal of 23073165 is 56137032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8003241 + 15069924 = 2829^2 + 3882^2 .

It is not a de Polignac number, because 23073165 - 23 = 23073157 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14316 + ... + 15845.

It is an arithmetic number, because the mean of its divisors is an integer number (1764477).

Almost surely, 223073165 is an apocalyptic number.

It is an amenable number.

23073165 is a deficient number, since it is larger than the sum of its proper divisors (19274283).

23073165 is a wasteful number, since it uses less digits than its factorization.

23073165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30189 (or 30186 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 23073165 is about 4803.4534451788. The cubic root of 23073165 is about 284.6879317322.

The spelling of 23073165 in words is "twenty-three million, seventy-three thousand, one hundred sixty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 30161 90483 150805 271449 452415 512737 1357245 1538211 2563685 4614633 7691055 23073165