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223442472 = 23311276943
BaseRepresentation
bin11010101000101…
…11011000101000
3120120110001110010
431110113120220
5424200124342
634101051520
75352141531
oct1524273050
9516401403
10223442472
11105144700
12629b6ba0
13373a45a6
1421965688
151493a29c
hexd517628

223442472 has 48 divisors (see below), whose sum is σ = 614013120. Its totient is φ = 67708960.

The previous prime is 223442449. The next prime is 223442473. The reversal of 223442472 is 274244322.

It is not an unprimeable number, because it can be changed into a prime (223442473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35568 + ... + 41375.

It is an arithmetic number, because the mean of its divisors is an integer number (12791940).

Almost surely, 2223442472 is an apocalyptic number.

223442472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223442472 is an abundant number, since it is smaller than the sum of its proper divisors (390570648).

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

223442472 is a wasteful number, since it uses less digits than its factorization.

223442472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76974 (or 76959 counting only the distinct ones).

The product of its digits is 21504, while the sum is 30.

The square root of 223442472 is about 14947.9922397625. The cubic root of 223442472 is about 606.8135116628.

Adding to 223442472 its reverse (274244322), we get a palindrome (497686794).

The spelling of 223442472 in words is "two hundred twenty-three million, four hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 121 132 242 264 363 484 726 968 1452 2904 76943 153886 230829 307772 461658 615544 846373 923316 1692746 1846632 2539119 3385492 5078238 6770984 9310103 10156476 18620206 20312952 27930309 37240412 55860618 74480824 111721236 223442472