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85148209111 = 7172412969009
BaseRepresentation
bin100111101001100111…
…0101000111111010111
322010210010101012020111
41033103032220333113
52343340420142421
6103041101343451
76103023556420
oct1172316507727
9263703335214
1085148209111
1133124a42859
1214603b67b87
13804c8b63b4
14419a7ba647
15233544dee1
hex13d33a8fd7

85148209111 has 16 divisors (see below), whose sum is σ = 103464060480. Its totient is φ = 68405944320.

The previous prime is 85148209103. The next prime is 85148209151. The reversal of 85148209111 is 11190284158.

It is not a de Polignac number, because 85148209111 - 23 = 85148209103 is a prime.

It is a super-3 number, since 3×851482091113 (a number of 34 digits) contains 333 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 (85148209151) 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 15 ways as a sum of consecutive naturals, for example, 1455826 + ... + 1513183.

It is an arithmetic number, because the mean of its divisors is an integer number (6466503780).

Almost surely, 285148209111 is an apocalyptic number.

85148209111 is a deficient number, since it is larger than the sum of its proper divisors (18315851369).

85148209111 is a wasteful number, since it uses less digits than its factorization.

85148209111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969274.

The product of its (nonzero) digits is 23040, while the sum is 40.

The spelling of 85148209111 in words is "eighty-five billion, one hundred forty-eight million, two hundred nine thousand, one hundred eleven".

Divisors: 1 7 17 119 241 1687 4097 28679 2969009 20783063 50473153 353312071 715531169 5008718183 12164029873 85148209111