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53018804569 = 131863468973
BaseRepresentation
bin110001011000001010…
…101100000101011001
312001211222020022222111
4301120022230011121
51332040303221234
640205000552321
73554566255153
oct613012540531
9161758208874
1053018804569
1120537807665
12a337a826a1
134ccc309513
1427cd62dad3
1515a4900664
hexc582ac159

53018804569 has 8 divisors (see below), whose sum is σ = 53485546752. Its totient is φ = 52553002320.

The previous prime is 53018804567. The next prime is 53018804623. The reversal of 53018804569 is 96540881035.

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 53018804569 - 21 = 53018804567 is a prime.

It is a super-2 number, since 2×530188045692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53018804567) 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, 121434 + ... + 347539.

It is an arithmetic number, because the mean of its divisors is an integer number (6685693344).

Almost surely, 253018804569 is an apocalyptic number.

It is an amenable number.

53018804569 is a deficient number, since it is larger than the sum of its proper divisors (466742183).

53018804569 is a wasteful number, since it uses less digits than its factorization.

53018804569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469967.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 53018804569 in words is "fifty-three billion, eighteen million, eight hundred four thousand, five hundred sixty-nine".

Divisors: 1 131 863 113053 468973 61435463 404723699 53018804569