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23383145 = 531257587
BaseRepresentation
bin101100100110…
…0110001101001
31121222222122102
41121030301221
521441230040
62153103145
7402516302
oct131146151
947888572
1023383145
1112221115
1279b7ab5
134ac92a6
1431697a9
1520bd515
hex164cc69

23383145 has 16 divisors (see below), whose sum is σ = 29127168. Its totient is φ = 18001920.

The previous prime is 23383127. The next prime is 23383153. The reversal of 23383145 is 54138332.

It is a de Polignac number, because none of the positive numbers 2k-23383145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39542 + ... + 40128.

It is an arithmetic number, because the mean of its divisors is an integer number (1820448).

Almost surely, 223383145 is an apocalyptic number.

It is an amenable number.

23383145 is a deficient number, since it is larger than the sum of its proper divisors (5744023).

23383145 is a wasteful number, since it uses less digits than its factorization.

23383145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 8640, while the sum is 29.

The square root of 23383145 is about 4835.6121639354. The cubic root of 23383145 is about 285.9571593777.

The spelling of 23383145 in words is "twenty-three million, three hundred eighty-three thousand, one hundred forty-five".

Divisors: 1 5 31 155 257 587 1285 2935 7967 18197 39835 90985 150859 754295 4676629 23383145