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18482250 = 2353191297
BaseRepresentation
bin100011010000…
…0010001001010
31021202222212210
41012200101022
514212413000
61500045550
7313045053
oct106402112
937688783
1018482250
11a483a96
1262338b6
133aa1657
14265172a
151951350
hex11a044a

18482250 has 64 divisors (see below), whose sum is σ = 48597120. Its totient is φ = 4665600.

The previous prime is 18482239. The next prime is 18482257. The reversal of 18482250 is 5228481.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (18482257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13602 + ... + 14898.

It is an arithmetic number, because the mean of its divisors is an integer number (759330).

Almost surely, 218482250 is an apocalyptic number.

18482250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18482250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24298560).

18482250 is an abundant number, since it is smaller than the sum of its proper divisors (30114870).

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

18482250 is a wasteful number, since it uses less digits than its factorization.

18482250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 18482250 is about 4299.0987427599. The cubic root of 18482250 is about 264.3940110624.

The spelling of 18482250 in words is "eighteen million, four hundred eighty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 19 25 30 38 50 57 75 95 114 125 150 190 250 285 375 475 570 750 950 1297 1425 2375 2594 2850 3891 4750 6485 7125 7782 12970 14250 19455 24643 32425 38910 49286 64850 73929 97275 123215 147858 162125 194550 246430 324250 369645 486375 616075 739290 972750 1232150 1848225 3080375 3696450 6160750 9241125 18482250