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2113241031 = 321126381163
BaseRepresentation
bin111110111110101…
…0111111111000111
312110021102202201100
41331331113333013
513311442203111
6545410031143
7103240152366
oct17575277707
95407382640
102113241031
119949622a0
124ab8784b3
13278a759a5
141609357dd
15c57d0756
hex7df57fc7

2113241031 has 24 divisors (see below), whose sum is σ = 3342658176. Its totient is φ = 1275866640.

The previous prime is 2113241023. The next prime is 2113241059. The reversal of 2113241031 is 1301423112.

It is not a de Polignac number, because 2113241031 - 23 = 2113241023 is a prime.

It is a super-2 number, since 2×21132410312 = 8931575310203885922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113240995 and 2113241013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113241021) 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, 14545 + ... + 66618.

It is an arithmetic number, because the mean of its divisors is an integer number (139277424).

Almost surely, 22113241031 is an apocalyptic number.

2113241031 is a deficient number, since it is larger than the sum of its proper divisors (1229417145).

2113241031 is a wasteful number, since it uses less digits than its factorization.

2113241031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81443 (or 81440 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2113241031 is about 45970.0014248423. The cubic root of 2113241031 is about 1283.2649864240.

Adding to 2113241031 its reverse (1301423112), we get a palindrome (3414664143).

The spelling of 2113241031 in words is "two billion, one hundred thirteen million, two hundred forty-one thousand, thirty-one".

Divisors: 1 3 9 11 33 99 263 789 2367 2893 8679 26037 81163 243489 730467 892793 2678379 8035137 21345869 64037607 192112821 234804559 704413677 2113241031