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23889712 = 2471119391
BaseRepresentation
bin101101100100…
…0011100110000
31122221201112011
41123020130300
522103432322
62212012304
7410026210
oct133103460
948851464
1023889712
1112537770
128001094
134c45a32
14325c240
15216d677
hex16c8730

23889712 has 40 divisors (see below), whose sum is σ = 57710592. Its totient is φ = 9307200.

The previous prime is 23889703. The next prime is 23889713. The reversal of 23889712 is 21798832.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23889713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8464 + ... + 10927.

Almost surely, 223889712 is an apocalyptic number.

23889712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23889712 is an abundant number, since it is smaller than the sum of its proper divisors (33820880).

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

23889712 is a wasteful number, since it uses less digits than its factorization.

23889712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19417 (or 19411 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 23889712 is about 4887.7103023809. The cubic root of 23889712 is about 288.0073943575.

It can be divided in two parts, 2388 and 9712, that added together give a square (12100 = 1102).

The spelling of 23889712 in words is "twenty-three million, eight hundred eighty-nine thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 19391 38782 77564 135737 155128 213301 271474 310256 426602 542948 853204 1085896 1493107 1706408 2171792 2986214 3412816 5972428 11944856 23889712