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2105531141 = 71717693539
BaseRepresentation
bin111110101111111…
…1101101100000101
312102201221001201212
41331133331230011
513303003444031
6544532501205
7103114501520
oct17537755405
95381831655
102105531141
1199057678a
124a917a805
132772a661c
1415d8c9bb7
15c4cab12b
hex7d7fdb05

2105531141 has 8 divisors (see below), whose sum is σ = 2547869760. Its totient is φ = 1698579648.

The previous prime is 2105531137. The next prime is 2105531161. The reversal of 2105531141 is 1411355012.

Adding to 2105531141 its reverse (1411355012), we get a palindrome (3516886153).

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 2105531141 - 22 = 2105531137 is a prime.

It is a super-2 number, since 2×21055311412 = 8866522771441523762, which contains 22 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 (2105531161) 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, 8846651 + ... + 8846888.

It is an arithmetic number, because the mean of its divisors is an integer number (318483720).

Almost surely, 22105531141 is an apocalyptic number.

It is an amenable number.

2105531141 is a deficient number, since it is larger than the sum of its proper divisors (442338619).

2105531141 is a wasteful number, since it uses less digits than its factorization.

2105531141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693563.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 2105531141 is about 45886.0669593723. The cubic root of 2105531141 is about 1281.7024752046.

The spelling of 2105531141 in words is "two billion, one hundred five million, five hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 7 17 119 17693539 123854773 300790163 2105531141