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244443040 = 2551527769
BaseRepresentation
bin11101001000111…
…10011110100000
3122000221222210221
432210132132200
51000034134130
640131132424
76025505632
oct1644363640
9560858727
10244443040
11115a88746
1269a44114
133b84826a
1424670a52
15166d787a
hexe91e7a0

244443040 has 24 divisors (see below), whose sum is σ = 577497060. Its totient is φ = 97777152.

The previous prime is 244443019. The next prime is 244443047. The reversal of 244443040 is 40344442.

244443040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 241740304 + 2702736 = 15548^2 + 1644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244442996 and 244443014.

It is not an unprimeable number, because it can be changed into a prime (244443047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763725 + ... + 764044.

Almost surely, 2244443040 is an apocalyptic number.

244443040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244443040 is an abundant number, since it is smaller than the sum of its proper divisors (333054020).

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

244443040 is a wasteful number, since it uses less digits than its factorization.

244443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527784 (or 1527776 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 244443040 is about 15634.6742850627. The cubic root of 244443040 is about 625.2579543207.

Adding to 244443040 its reverse (40344442), we get a palindrome (284787482).

The spelling of 244443040 in words is "two hundred forty-four million, four hundred forty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1527769 3055538 6111076 7638845 12222152 15277690 24444304 30555380 48888608 61110760 122221520 244443040