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1320131160 = 233253667031
BaseRepresentation
bin100111010101111…
…1001101001011000
310102000001121111200
41032223321221120
510200423144120
6334554554200
744466633615
oct11653715130
93360047450
101320131160
116181a8097
1230a138960
13180665cca
14c748150c
157ad69e90
hex4eaf9a58

1320131160 has 48 divisors (see below), whose sum is σ = 4290427440. Its totient is φ = 352034880.

The previous prime is 1320131143. The next prime is 1320131171. The reversal of 1320131160 is 611310231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1833156 + ... + 1833875.

It is an arithmetic number, because the mean of its divisors is an integer number (89383905).

Almost surely, 21320131160 is an apocalyptic number.

1320131160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320131160 is an abundant number, since it is smaller than the sum of its proper divisors (2970296280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320131160 is a wasteful number, since it uses less digits than its factorization.

1320131160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667048 (or 3667041 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1320131160 is about 36333.6092344265. The cubic root of 1320131160 is about 1096.9976419715.

Adding to 1320131160 its reverse (611310231), we get a palindrome (1931441391).

The spelling of 1320131160 in words is "one billion, three hundred twenty million, one hundred thirty-one thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 3667031 7334062 11001093 14668124 18335155 22002186 29336248 33003279 36670310 44004372 55005465 66006558 73340620 88008744 110010930 132013116 146681240 165016395 220021860 264026232 330032790 440043720 660065580 1320131160