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16485575231 = 197557150239
BaseRepresentation
bin11110101101001110…
…11110101000111111
31120112220111222210102
433112213132220333
5232230301401411
611323503031315
71122346035356
oct172647365077
946486458712
1016485575231
116a9a74a744
123240b9b53b
13172955a758
14b2565099d
1566745ed3b
hex3d69dea3f

16485575231 has 8 divisors (see below), whose sum is σ = 16599116160. Its totient is φ = 16372336288.

The previous prime is 16485575213. The next prime is 16485575237. The reversal of 16485575231 is 13257558461.

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 16485575231 - 214 = 16485558847 is a prime.

It is a super-2 number, since 2×164855752312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16485575237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34610 + ... + 184848.

It is an arithmetic number, because the mean of its divisors is an integer number (2074889520).

Almost surely, 216485575231 is an apocalyptic number.

16485575231 is a deficient number, since it is larger than the sum of its proper divisors (113540929).

16485575231 is a wasteful number, since it uses less digits than its factorization.

16485575231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150993.

The product of its digits is 1008000, while the sum is 47.

The spelling of 16485575231 in words is "sixteen billion, four hundred eighty-five million, five hundred seventy-five thousand, two hundred thirty-one".

Divisors: 1 197 557 109729 150239 29597083 83683123 16485575231