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1168297141 = 11106208831
BaseRepresentation
bin100010110100010…
…1100110010110101
310000102100122101111
41011220230302311
54343041002031
6311532355021
740644235054
oct10550546265
93012318344
101168297141
1154a522a30
12287315a71
131580743ab
14b123a39b
156c8771b1
hex45a2ccb5

1168297141 has 4 divisors (see below), whose sum is σ = 1274505984. Its totient is φ = 1062088300.

The previous prime is 1168297139. The next prime is 1168297153. The reversal of 1168297141 is 1417928611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1417928611 = 11128902601.

It is a cyclic number.

It is not a de Polignac number, because 1168297141 - 21 = 1168297139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1168297094 and 1168297103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168297241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53104405 + ... + 53104426.

It is an arithmetic number, because the mean of its divisors is an integer number (318626496).

Almost surely, 21168297141 is an apocalyptic number.

1168297141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1168297141 is a deficient number, since it is larger than the sum of its proper divisors (106208843).

1168297141 is a wasteful number, since it uses less digits than its factorization.

1168297141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106208842.

The product of its digits is 24192, while the sum is 40.

The square root of 1168297141 is about 34180.3619202606. The cubic root of 1168297141 is about 1053.2167838140.

The spelling of 1168297141 in words is "one billion, one hundred sixty-eight million, two hundred ninety-seven thousand, one hundred forty-one".

Divisors: 1 11 106208831 1168297141