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53091831305 = 513181056231
BaseRepresentation
bin110001011100100001…
…010000111000001001
312002001001122110211102
4301130201100320021
51332213002100210
640220130111145
73556444056122
oct613441207011
9162031573742
1053091831305
1120574a55737
12a35841b4b5
1350114978c6
1427d91dd049
1515ab027ea5
hexc5c850e09

53091831305 has 8 divisors (see below), whose sum is σ = 64196535744. Its totient is φ = 42149239600.

The previous prime is 53091831281. The next prime is 53091831313. The reversal of 53091831305 is 50313819035.

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

It is not a de Polignac number, because 53091831305 - 28 = 53091831049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40527461 + ... + 40528770.

It is an arithmetic number, because the mean of its divisors is an integer number (8024566968).

Almost surely, 253091831305 is an apocalyptic number.

It is an amenable number.

53091831305 is a deficient number, since it is larger than the sum of its proper divisors (11104704439).

53091831305 is a wasteful number, since it uses less digits than its factorization.

53091831305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81056367.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 53091831305 in words is "fifty-three billion, ninety-one million, eight hundred thirty-one thousand, three hundred five".

Divisors: 1 5 131 655 81056231 405281155 10618366261 53091831305