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244220544 = 2732211997
BaseRepresentation
bin11101000111010…
…00001010000000
3122000112200121100
432203220022000
51000010024134
640122254400
76023561151
oct1643501200
9560480540
10244220544
11115946567
1269957400
133b79abc9
1424613928
1516691999
hexe8e8280

244220544 has 48 divisors (see below), whose sum is σ = 702773370. Its totient is φ = 81406464.

The previous prime is 244220497. The next prime is 244220563. The reversal of 244220544 is 445022442.

It can be written as a sum of positive squares in only one way, i.e., 233722944 + 10497600 = 15288^2 + 3240^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2442205442 = 119287348223311872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104847 + ... + 107150.

Almost surely, 2244220544 is an apocalyptic number.

244220544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

244220544 is an abundant number, since it is smaller than the sum of its proper divisors (458552826).

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

244220544 is a wasteful number, since it uses less digits than its factorization.

244220544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212017 (or 212002 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 244220544 is about 15627.5571987435. The cubic root of 244220544 is about 625.0681901066.

Adding to 244220544 its reverse (445022442), we get a palindrome (689242986).

The spelling of 244220544 in words is "two hundred forty-four million, two hundred twenty thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 211997 423994 635991 847988 1271982 1695976 1907973 2543964 3391952 3815946 5087928 6783904 7631892 10175856 13567808 15263784 20351712 27135616 30527568 40703424 61055136 81406848 122110272 244220544