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14440040440 = 235751571573
BaseRepresentation
bin11010111001011000…
…11000011111111000
31101021100111001120121
431130230120133320
5214033122243230
610344512103024
71020560214160
oct153454303770
941240431517
1014440040440
116140032121
12296bb34a74
13149182c537
149adb015a0
15597aa577a
hex35cb187f8

14440040440 has 32 divisors (see below), whose sum is σ = 37131533280. Its totient is φ = 4950870912.

The previous prime is 14440040393. The next prime is 14440040561. The reversal of 14440040440 is 4404004441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25785507 + ... + 25786066.

It is an arithmetic number, because the mean of its divisors is an integer number (1160360415).

Almost surely, 214440040440 is an apocalyptic number.

14440040440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14440040440 is an abundant number, since it is smaller than the sum of its proper divisors (22691492840).

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

14440040440 is a wasteful number, since it uses less digits than its factorization.

14440040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51571591 (or 51571587 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 14440040440 its reverse (4404004441), we get a palindrome (18844044881).

The spelling of 14440040440 in words is "fourteen billion, four hundred forty million, forty thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 51571573 103143146 206286292 257857865 361001011 412572584 515715730 722002022 1031431460 1444004044 1805005055 2062862920 2888008088 3610010110 7220020220 14440040440