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103444005520 = 2451293050069
BaseRepresentation
bin110000001010110111…
…1100100001010010000
3100220000012010221122201
41200111233210022100
53143323131134040
6115304352012544
710321303352632
oct1402557441220
9326005127581
10103444005520
113a963498459
121806b231154
1399a71a232b
145014604a52
152a56785a9a
hex1815be4290

103444005520 has 20 divisors (see below), whose sum is σ = 240507313020. Its totient is φ = 41377602176.

The previous prime is 103444005481. The next prime is 103444005569. The reversal of 103444005520 is 25500444301.

It can be written as a sum of positive squares in 2 ways, for example, as 29955301776 + 73488703744 = 173076^2 + 271088^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 646524955 + ... + 646525114.

It is an arithmetic number, because the mean of its divisors is an integer number (12025365651).

Almost surely, 2103444005520 is an apocalyptic number.

103444005520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103444005520 is an abundant number, since it is smaller than the sum of its proper divisors (137063307500).

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

103444005520 is a wasteful number, since it uses less digits than its factorization.

103444005520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293050082 (or 1293050076 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 103444005520 its reverse (25500444301), we get a palindrome (128944449821).

The spelling of 103444005520 in words is "one hundred three billion, four hundred forty-four million, five thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1293050069 2586100138 5172200276 6465250345 10344400552 12930500690 20688801104 25861001380 51722002760 103444005520