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1145211386 = 21153982171
BaseRepresentation
bin100010001000010…
…1000100111111010
32221210220202200112
41010100220213322
54321133231021
6305345504322
740244064464
oct10420504772
92853822615
101145211386
115384952a0
1227b6420a2
13153350597
14ac14b134
156a816d5b
hex444289fa

1145211386 has 16 divisors (see below), whose sum is σ = 1909342368. Its totient is φ = 510728400.

The previous prime is 1145211373. The next prime is 1145211401. The reversal of 1145211386 is 6831125411.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 489920 + ... + 492251.

It is an arithmetic number, because the mean of its divisors is an integer number (119333898).

Almost surely, 21145211386 is an apocalyptic number.

1145211386 is a deficient number, since it is larger than the sum of its proper divisors (764130982).

1145211386 is a wasteful number, since it uses less digits than its factorization.

1145211386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982237.

The product of its digits is 5760, while the sum is 32.

The square root of 1145211386 is about 33840.9720014068. The cubic root of 1145211386 is about 1046.2333327062.

Adding to 1145211386 its reverse (6831125411), we get a palindrome (7976336797).

Subtracting 1145211386 from its reverse (6831125411), we obtain a square (5685914025 = 754052).

The spelling of 1145211386 in words is "one billion, one hundred forty-five million, two hundred eleven thousand, three hundred eighty-six".

Divisors: 1 2 11 22 53 106 583 1166 982171 1964342 10803881 21607762 52055063 104110126 572605693 1145211386