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23030000 = 24547247
BaseRepresentation
bin101011111011…
…0100011110000
31121100001012222
41113312203300
521343430000
62141340212
7366515600
oct127664360
947301188
1023030000
1111aaa864
127867668
134a04626
1430b6c00
15204da85
hex15f68f0

23030000 has 150 divisors (see below), whose sum is σ = 66241296. Its totient is φ = 7728000.

The previous prime is 23029999. The next prime is 23030011. The reversal of 23030000 is 3032.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23030000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 489977 + ... + 490023.

Almost surely, 223030000 is an apocalyptic number.

23030000 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 23030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33120648).

23030000 is an abundant number, since it is smaller than the sum of its proper divisors (43211296).

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

23030000 is an equidigital number, since it uses as much as digits as its factorization.

23030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 8.

The square root of 23030000 is about 4798.9582202807. The cubic root of 23030000 is about 284.5102906552.

Adding to 23030000 its reverse (3032), we get a palindrome (23033032).

The spelling of 23030000 in words is "twenty-three million, thirty thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 47 49 50 56 70 80 94 98 100 112 125 140 175 188 196 200 235 245 250 280 329 350 376 392 400 470 490 500 560 625 658 700 752 784 875 940 980 1000 1175 1225 1250 1316 1400 1645 1750 1880 1960 2000 2303 2350 2450 2500 2632 2800 3290 3500 3760 3920 4375 4606 4700 4900 5000 5264 5875 6125 6580 7000 8225 8750 9212 9400 9800 10000 11515 11750 12250 13160 14000 16450 17500 18424 18800 19600 23030 23500 24500 26320 29375 30625 32900 35000 36848 41125 46060 47000 49000 57575 58750 61250 65800 70000 82250 92120 94000 98000 115150 117500 122500 131600 164500 184240 205625 230300 235000 245000 287875 329000 411250 460600 470000 490000 575750 658000 822500 921200 1151500 1439375 1645000 2303000 2878750 3290000 4606000 5757500 11515000 23030000