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55144151120 = 245689301889
BaseRepresentation
bin110011010110110110…
…001111100001010000
312021100002110010100102
4303112312033201100
51400413400313440
641155522311532
73661344356612
oct632666174120
9167302403312
1055144151120
1121428487a13
12a82b7b85a8
13527a730226
1429519d6db2
15167b2c2b15
hexcd6d8f850

55144151120 has 20 divisors (see below), whose sum is σ = 128210151540. Its totient is φ = 22057660416.

The previous prime is 55144151119. The next prime is 55144151143. The reversal of 55144151120 is 2115144155.

55144151120 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 31361576464 + 23782574656 = 177092^2 + 154216^2 .

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

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, 344650865 + ... + 344651024.

It is an arithmetic number, because the mean of its divisors is an integer number (6410507577).

Almost surely, 255144151120 is an apocalyptic number.

It is an amenable number.

55144151120 is an abundant number, since it is smaller than the sum of its proper divisors (73066000420).

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

55144151120 is a wasteful number, since it uses less digits than its factorization.

55144151120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689301902 (or 689301896 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 55144151120 its reverse (2115144155), we get a palindrome (57259295275).

The spelling of 55144151120 in words is "fifty-five billion, one hundred forty-four million, one hundred fifty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 689301889 1378603778 2757207556 3446509445 5514415112 6893018890 11028830224 13786037780 27572075560 55144151120