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111110130440 = 23515531788637
BaseRepresentation
bin110011101111010101…
…1100000101100001000
3101121210110022110001022
41213132223200230020
53310023143133230
6123013203412012
711012261345231
oct1473653405410
9347713273038
10111110130440
1143137854591
121964a684008
13a6294b691a
1455407dc088
152d547d01e5
hex19deae0b08

111110130440 has 32 divisors (see below), whose sum is σ = 250158910680. Its totient is φ = 44415409152.

The previous prime is 111110130437. The next prime is 111110130449. The reversal of 111110130440 is 44031011111.

It can be written as a sum of positive squares in 4 ways, for example, as 47274065476 + 63836064964 = 217426^2 + 252658^2 .

It is a super-2 number, since 2×1111101304402 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111110130449) 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, 832199 + ... + 956438.

Almost surely, 2111110130440 is an apocalyptic number.

111110130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111110130440 is an abundant number, since it is smaller than the sum of its proper divisors (139048780240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111110130440 is a wasteful number, since it uses less digits than its factorization.

111110130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790201 (or 1790197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111110130440 its reverse (44031011111), we get a palindrome (155141141551).

The spelling of 111110130440 in words is "one hundred eleven billion, one hundred ten million, one hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1553 3106 6212 7765 12424 15530 31060 62120 1788637 3577274 7154548 8943185 14309096 17886370 35772740 71545480 2777753261 5555506522 11111013044 13888766305 22222026088 27777532610 55555065220 111110130440