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53201684181 = 369491255197
BaseRepresentation
bin110001100011000100…
…010100011011010101
312002022201100120122110
4301203010110123111
51332424112343211
640235052421233
73562246565652
oct614304243325
9162281316573
1053201684181
1120620a66838
12a389177819
13502b17acc9
142809a36c29
1515b59c6ea6
hexc631146d5

53201684181 has 8 divisors (see below), whose sum is σ = 70936877664. Its totient is φ = 35467140080.

The previous prime is 53201684149. The next prime is 53201684183. The reversal of 53201684181 is 18148610235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53201684181 - 25 = 53201684149 is a prime.

It is a super-2 number, since 2×532016841812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53201684183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80875 + ... + 336071.

It is an arithmetic number, because the mean of its divisors is an integer number (8867109708).

Almost surely, 253201684181 is an apocalyptic number.

It is an amenable number.

53201684181 is a deficient number, since it is larger than the sum of its proper divisors (17735193483).

53201684181 is a wasteful number, since it uses less digits than its factorization.

53201684181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324691.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 53201684181 in words is "fifty-three billion, two hundred one million, six hundred eighty-four thousand, one hundred eighty-one".

Divisors: 1 3 69491 208473 255197 765591 17733894727 53201684181