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44145457120 = 2552143128749
BaseRepresentation
bin101001000111010001…
…100011011111100000
311012221120110120121101
4221013101203133200
51210402214111440
632140302204144
73121652123422
oct510721433740
9135846416541
1044145457120
11177a3a61366
128680283654
134216b7217b
1421cad86812
1512358e069a
hexa474637e0

44145457120 has 48 divisors (see below), whose sum is σ = 104343120000. Its totient is φ = 17649805824.

The previous prime is 44145457099. The next prime is 44145457121. The reversal of 44145457120 is 2175454144.

It is a self number, because there is not a number n which added to its sum of digits gives 44145457120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145457121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278506 + ... + 407254.

It is an arithmetic number, because the mean of its divisors is an integer number (2173815000).

Almost surely, 244145457120 is an apocalyptic number.

44145457120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44145457120 is an abundant number, since it is smaller than the sum of its proper divisors (60197662880).

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

44145457120 is a wasteful number, since it uses less digits than its factorization.

44145457120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130907 (or 130899 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 44145457120 in words is "forty-four billion, one hundred forty-five million, four hundred fifty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 2143 4286 8572 10715 17144 21430 34288 42860 68576 85720 128749 171440 257498 342880 514996 643745 1029992 1287490 2059984 2574980 4119968 5149960 10299920 20599840 275909107 551818214 1103636428 1379545535 2207272856 2759091070 4414545712 5518182140 8829091424 11036364280 22072728560 44145457120