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23681384 = 232960173
BaseRepresentation
bin101101001010…
…1100101101000
31122120010202022
41122111211220
522030301014
62203324012
7405200636
oct132254550
948503668
1023681384
11124051a1
127b20608
134ba1c6c
143206356
15212ba8e
hex1695968

23681384 has 8 divisors (see below), whose sum is σ = 44402610. Its totient is φ = 11840688.

The previous prime is 23681377. The next prime is 23681389. The reversal of 23681384 is 48318632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 10562500 = 3622^2 + 3250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23681389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1480079 + ... + 1480094.

Almost surely, 223681384 is an apocalyptic number.

It is an amenable number.

23681384 is a deficient number, since it is larger than the sum of its proper divisors (20721226).

23681384 is a wasteful number, since it uses less digits than its factorization.

23681384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960179 (or 2960175 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 23681384 is about 4866.3522272848. The cubic root of 23681384 is about 287.1677684620.

The spelling of 23681384 in words is "twenty-three million, six hundred eighty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 2960173 5920346 11840692 23681384