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105004260866 = 252502130433
BaseRepresentation
bin110000111001010111…
…1011101111000000010
3101001000221001010121202
41201302233131320002
53210022042321431
6120123245421202
710405050330221
oct1416257357002
9331027033552
10105004260866
114059419338a
121842586a802
139b9550084b
145121910cb8
152ae87338cb
hex1872bdde02

105004260866 has 4 divisors (see below), whose sum is σ = 157506391302. Its totient is φ = 52502130432.

The previous prime is 105004260827. The next prime is 105004260869. The reversal of 105004260866 is 668062400501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668062400501 = 1663401721227.

It can be written as a sum of positive squares in only one way, i.e., 102322574641 + 2681686225 = 319879^2 + 51785^2 .

It is a super-2 number, since 2×1050042608662 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105004260869) 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 as a sum of consecutive naturals, namely, 26251065215 + ... + 26251065218.

Almost surely, 2105004260866 is an apocalyptic number.

105004260866 is a deficient number, since it is larger than the sum of its proper divisors (52502130436).

105004260866 is an equidigital number, since it uses as much as digits as its factorization.

105004260866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52502130435.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 105004260866 in words is "one hundred five billion, four million, two hundred sixty thousand, eight hundred sixty-six".

Divisors: 1 2 52502130433 105004260866