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53791428145 = 5713118222919
BaseRepresentation
bin110010000110001110…
…000000111000110001
312010211211001200021111
4302012032000320301
51340131101200040
640413400553321
73613000411060
oct620616007061
9163754050244
1053791428145
11208a394a144
12a512782841
1350c33c5630
1428640b01d7
1515ec66adea
hexc86380e31

53791428145 has 16 divisors (see below), whose sum is σ = 79445802240. Its totient is φ = 34048200384.

The previous prime is 53791428133. The next prime is 53791428161. The reversal of 53791428145 is 54182419735.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53791428145 - 211 = 53791426097 is a prime.

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, 59111005 + ... + 59111914.

It is an arithmetic number, because the mean of its divisors is an integer number (4965362640).

Almost surely, 253791428145 is an apocalyptic number.

It is an amenable number.

53791428145 is a deficient number, since it is larger than the sum of its proper divisors (25654374095).

53791428145 is a wasteful number, since it uses less digits than its factorization.

53791428145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118222944.

The product of its digits is 1209600, while the sum is 49.

The spelling of 53791428145 in words is "fifty-three billion, seven hundred ninety-one million, four hundred twenty-eight thousand, one hundred forty-five".

Divisors: 1 5 7 13 35 65 91 455 118222919 591114595 827560433 1536897947 4137802165 7684489735 10758285629 53791428145