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2111101330 = 251316239241
BaseRepresentation
bin111110111010100…
…1101100110010010
312110010102001121011
41331311031212102
513310420220310
6545252121134
7103213031242
oct17565154622
95403361534
102111101330
11993730748
124ab0061aa
132784a6ab0
14160539b22
15c550b78a
hex7dd4d992

2111101330 has 16 divisors (see below), whose sum is σ = 4092288984. Its totient is φ = 779483520.

The previous prime is 2111101319. The next prime is 2111101339. The reversal of 2111101330 is 331011112.

It can be written as a sum of positive squares in 4 ways, for example, as 1942958241 + 168143089 = 44079^2 + 12967^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2111101330.

It is not an unprimeable number, because it can be changed into a prime (2111101339) 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, 8119491 + ... + 8119750.

Almost surely, 22111101330 is an apocalyptic number.

2111101330 is a deficient number, since it is larger than the sum of its proper divisors (1981187654).

2111101330 is a wasteful number, since it uses less digits than its factorization.

2111101330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16239261.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2111101330 is about 45946.7227340536. The cubic root of 2111101330 is about 1282.8317292322.

Adding to 2111101330 its reverse (331011112), we get a palindrome (2442112442).

The spelling of 2111101330 in words is "two billion, one hundred eleven million, one hundred one thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 16239241 32478482 81196205 162392410 211110133 422220266 1055550665 2111101330