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23887116 = 22331120107
BaseRepresentation
bin101101100011…
…1110100001100
31122221120222000
41123013310030
522103341431
62211552300
7410015511
oct133076414
948846860
1023887116
1112535820
127bbb690
134c447b6
14325b308
15216c9e6
hex16c7d0c

23887116 has 48 divisors (see below), whose sum is σ = 67562880. Its totient is φ = 7238160.

The previous prime is 23887109. The next prime is 23887117. The reversal of 23887116 is 61178832.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23887117) 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, 8866 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (1407560).

Almost surely, 223887116 is an apocalyptic number.

It is an amenable number.

23887116 is an abundant number, since it is smaller than the sum of its proper divisors (43675764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23887116 is a wasteful number, since it uses less digits than its factorization.

23887116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131 (or 20123 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 23887116 is about 4887.4447311453. Note that the first 3 decimals coincide. The cubic root of 23887116 is about 287.9969617735.

The spelling of 23887116 in words is "twenty-three million, eight hundred eighty-seven thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 20107 40214 60321 80428 120642 180963 221177 241284 361926 442354 542889 663531 723852 884708 1085778 1327062 1990593 2171556 2654124 3981186 5971779 7962372 11943558 23887116