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444245240 = 23511106131
BaseRepresentation
bin11010011110101…
…010010011111000
31010221220222220102
4122132222103320
51402211321430
6112025414532
714003010425
oct3236522370
91127828812
10444245240
1120884602a
1210493a448
137106350a
1443000d4c
1529003345
hex1a7aa4f8

444245240 has 16 divisors (see below), whose sum is σ = 999551880. Its totient is φ = 177698080.

The previous prime is 444245239. The next prime is 444245257. The reversal of 444245240 is 42542444.

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, 5553026 + ... + 5553105.

Almost surely, 2444245240 is an apocalyptic number.

444245240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444245240 is an abundant number, since it is smaller than the sum of its proper divisors (555306640).

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

444245240 is a wasteful number, since it uses less digits than its factorization.

444245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106142 (or 11106138 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 444245240 is about 21077.1259900395. The cubic root of 444245240 is about 763.0287952479.

Adding to 444245240 its reverse (42542444), we get a palindrome (486787684).

The spelling of 444245240 in words is "four hundred forty-four million, two hundred forty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 11106131 22212262 44424524 55530655 88849048 111061310 222122620 444245240