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12051570471 = 347472318097
BaseRepresentation
bin10110011100101010…
…00101111100100111
31011002220011012201220
423032111011330213
5144140200223341
65311510551423
7604435441653
oct131625057447
934086135656
1012051570471
1151248852a6
122404068573
1311a0a4c9b5
14824803a63
154a805aa66
hex2ce545f27

12051570471 has 16 divisors (see below), whose sum is σ = 16415030784. Its totient is φ = 7861336704.

The previous prime is 12051570467. The next prime is 12051570493. The reversal of 12051570471 is 17407515021.

It is not a de Polignac number, because 12051570471 - 22 = 12051570467 is a prime.

It is a super-3 number, since 3×120515704713 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051570071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656895 + ... + 674991.

It is an arithmetic number, because the mean of its divisors is an integer number (1025939424).

Almost surely, 212051570471 is an apocalyptic number.

12051570471 is a deficient number, since it is larger than the sum of its proper divisors (4363460313).

12051570471 is a wasteful number, since it uses less digits than its factorization.

12051570471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22870.

The product of its (nonzero) digits is 9800, while the sum is 33.

The spelling of 12051570471 in words is "twelve billion, fifty-one million, five hundred seventy thousand, four hundred seventy-one".

Divisors: 1 3 47 141 4723 14169 18097 54291 221981 665943 850559 2551677 85472131 256416393 4017190157 12051570471