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53444302220 = 22510724973973
BaseRepresentation
bin110001110001100001…
…110101010110001100
312002221121212212000202
4301301201311112030
51333423220132340
640315120513032
73601254034121
oct616141652614
9162847785022
1053444302220
1120735a08311
12a43647b778
13506950768a
14282dd50748
1515cbe4dc15
hexc7187558c

53444302220 has 24 divisors (see below), whose sum is σ = 113281946064. Its totient is φ = 21177928256.

The previous prime is 53444302213. The next prime is 53444302231. The reversal of 53444302220 is 2220344435.

It is a happy number.

It is an unprimeable number.

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, 12484847 + ... + 12489126.

It is an arithmetic number, because the mean of its divisors is an integer number (4720081086).

Almost surely, 253444302220 is an apocalyptic number.

It is an amenable number.

53444302220 is an abundant number, since it is smaller than the sum of its proper divisors (59837643844).

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

53444302220 is a wasteful number, since it uses less digits than its factorization.

53444302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24974089 (or 24974087 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 53444302220 its reverse (2220344435), we get a palindrome (55664646655).

The spelling of 53444302220 in words is "fifty-three billion, four hundred forty-four million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1070 2140 24973973 49947946 99895892 124869865 249739730 499479460 2672215111 5344430222 10688860444 13361075555 26722151110 53444302220