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2110012011 = 358779901
BaseRepresentation
bin111110111000100…
…0011101001101011
312110001100201100000
41331301003221223
513310130341021
6545212514043
7103200543342
oct17561035153
95401321300
102110012011
11993057288
124aa77b923
132781b5023
14160334b59
15c5393b26
hex7dc43a6b

2110012011 has 24 divisors (see below), whose sum is σ = 3164599984. Its totient is φ = 1404928800.

The previous prime is 2110011983. The next prime is 2110012013. The reversal of 2110012011 is 1102100112.

It is a happy number.

It is not a de Polignac number, because 2110012011 - 218 = 2109749867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110011984 and 2110012002.

It is not an unprimeable number, because it can be changed into a prime (2110012013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208161 + ... + 218061.

Almost surely, 22110012011 is an apocalyptic number.

2110012011 is a deficient number, since it is larger than the sum of its proper divisors (1054587973).

2110012011 is an frugal number, since it uses more digits than its factorization.

2110012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793 (or 10781 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2110012011 is about 45934.8670510757. The cubic root of 2110012011 is about 1282.6110460942.

Adding to 2110012011 its reverse (1102100112), we get a palindrome (3212112123).

The spelling of 2110012011 in words is "two billion, one hundred ten million, twelve thousand, eleven".

Divisors: 1 3 9 27 81 243 877 2631 7893 9901 23679 29703 71037 89109 213111 267327 801981 2405943 8683177 26049531 78148593 234445779 703337337 2110012011