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23214400 = 2652111319
BaseRepresentation
bin101100010001…
…1100101000000
31121200102011121
41120203211000
521420330100
62145322024
7401214316
oct130434500
947612147
1023214400
1112116360
127936314
134a6a541
1431240b6
15208851a
hex1623940

23214400 has 84 divisors (see below), whose sum is σ = 62362080. Its totient is φ = 8435200.

The previous prime is 23214391. The next prime is 23214403. The reversal of 23214400 is 441232.

23214400 = T749 + T750 + ... + T823.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23214403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16941 + ... + 18259.

Almost surely, 223214400 is an apocalyptic number.

23214400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23214400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31181040).

23214400 is an abundant number, since it is smaller than the sum of its proper divisors (39147680).

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

23214400 is a wasteful number, since it uses less digits than its factorization.

23214400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 23214400 is about 4818.1324182716. The cubic root of 23214400 is about 285.2676259059.

Adding to 23214400 its reverse (441232), we get a palindrome (23655632).

The spelling of 23214400 in words is "twenty-three million, two hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 160 176 200 220 275 320 352 400 440 550 704 800 880 1100 1319 1600 1760 2200 2638 3520 4400 5276 6595 8800 10552 13190 14509 17600 21104 26380 29018 32975 42208 52760 58036 65950 72545 84416 105520 116072 131900 145090 211040 232144 263800 290180 362725 422080 464288 527600 580360 725450 928576 1055200 1160720 1450900 2110400 2321440 2901800 4642880 5803600 11607200 23214400