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53311605145 = 5191972848603
BaseRepresentation
bin110001101001100111…
…101000100110011001
312002121101012010212021
4301221213220212121
51333140232331040
640254020414441
73565053111151
oct615147504631
9162541163767
1053311605145
1120678014007
12a3b9b47421
135047b863b6
14281a48b761
1515c048b24a
hexc699e8999

53311605145 has 16 divisors (see below), whose sum is σ = 67682831040. Its totient is φ = 40199471424.

The previous prime is 53311605131. The next prime is 53311605161. The reversal of 53311605145 is 54150611335.

53311605145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53311605145 - 223 = 53303216537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53311605145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405587 + ... + 1443016.

It is an arithmetic number, because the mean of its divisors is an integer number (4230176940).

Almost surely, 253311605145 is an apocalyptic number.

It is an amenable number.

53311605145 is a deficient number, since it is larger than the sum of its proper divisors (14371225895).

53311605145 is a wasteful number, since it uses less digits than its factorization.

53311605145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848824.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 53311605145 in words is "fifty-three billion, three hundred eleven million, six hundred five thousand, one hundred forty-five".

Divisors: 1 5 19 95 197 985 3743 18715 2848603 14243015 54123457 270617285 561174791 2805873955 10662321029 53311605145