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223030240 = 2551393939
BaseRepresentation
bin11010100101100…
…10101111100000
3120112200002222021
431102302233200
5424043431430
634044151224
75345503636
oct1522625740
9515602867
10223030240
11104992a14
1262838514
133728ba74
1421899356
15148a807a
hexd4b2be0

223030240 has 24 divisors (see below), whose sum is σ = 526909320. Its totient is φ = 89212032.

The previous prime is 223030237. The next prime is 223030253. The reversal of 223030240 is 42030322.

223030240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696810 + ... + 697129.

It is an arithmetic number, because the mean of its divisors is an integer number (21954555).

Almost surely, 2223030240 is an apocalyptic number.

223030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223030240 is an abundant number, since it is smaller than the sum of its proper divisors (303879080).

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

223030240 is a wasteful number, since it uses less digits than its factorization.

223030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393954 (or 1393946 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 223030240 is about 14934.1969988346. The cubic root of 223030240 is about 606.4401091535.

Adding to 223030240 its reverse (42030322), we get a palindrome (265060562).

The spelling of 223030240 in words is "two hundred twenty-three million, thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1393939 2787878 5575756 6969695 11151512 13939390 22303024 27878780 44606048 55757560 111515120 223030240