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1112102005 = 57172964451
BaseRepresentation
bin100001001001001…
…0101010001110101
32212111121122011011
41002102111101311
54234144231010
6302204112221
736362465620
oct10222252165
92774548134
101112102005
11520830773
12270535671
1314952a231
14a79acdb7
1567976a8a
hex42495475

1112102005 has 32 divisors (see below), whose sum is σ = 1670595840. Its totient is φ = 692966400.

The previous prime is 1112101997. The next prime is 1112102009. The reversal of 1112102005 is 5002012111.

It is not a de Polignac number, because 1112102005 - 23 = 1112101997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112102009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14971 + ... + 49480.

It is an arithmetic number, because the mean of its divisors is an integer number (52206120).

Almost surely, 21112102005 is an apocalyptic number.

It is an amenable number.

1112102005 is a deficient number, since it is larger than the sum of its proper divisors (558493835).

1112102005 is a wasteful number, since it uses less digits than its factorization.

1112102005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64509.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1112102005 is about 33348.1934293299. The cubic root of 1112102005 is about 1036.0519709397.

Adding to 1112102005 its reverse (5002012111), we get a palindrome (6114114116).

The spelling of 1112102005 in words is "one billion, one hundred twelve million, one hundred two thousand, five".

Divisors: 1 5 7 17 29 35 85 119 145 203 493 595 1015 2465 3451 17255 64451 322255 451157 1095667 1869079 2255785 5478335 7669669 9345395 13083553 31774343 38348345 65417765 158871715 222420401 1112102005