Search a number
-
+
1101101405 = 5229795873
BaseRepresentation
bin100000110100001…
…0111100101011101
32211201220202011112
41001220113211131
54223340221110
6301132231405
736200131115
oct10150274535
92751822145
101101101405
115155a7868
1226890b565
131471780c1
14a6348045
1566a02405
hex41a1795d

1101101405 has 8 divisors (see below), whose sum is σ = 1321910712. Its totient is φ = 880488448.

The previous prime is 1101101401. The next prime is 1101101429. The reversal of 1101101405 is 5041011011.

It can be written as a sum of positive squares in 4 ways, for example, as 136936804 + 964164601 = 11702^2 + 31051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101101405 - 22 = 1101101401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101101405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101101401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36452 + ... + 59421.

It is an arithmetic number, because the mean of its divisors is an integer number (165238839).

Almost surely, 21101101405 is an apocalyptic number.

It is an amenable number.

1101101405 is a deficient number, since it is larger than the sum of its proper divisors (220809307).

1101101405 is an equidigital number, since it uses as much as digits as its factorization.

1101101405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98175.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1101101405 is about 33182.8480543789. The cubic root of 1101101405 is about 1032.6245334022.

Adding to 1101101405 its reverse (5041011011), we get a palindrome (6142112416).

The spelling of 1101101405 in words is "one billion, one hundred one million, one hundred one thousand, four hundred five".

Divisors: 1 5 2297 11485 95873 479365 220220281 1101101405