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111132031 = 2914232693
BaseRepresentation
bin1101001111110…
…11110101111111
321202010002111011
412213323311333
5211422211111
615005540051
72516415043
oct647736577
9252102434
10111132031
115780515a
1231274627
131a0406ca
1410a8c023
159b53021
hex69fbd7f

111132031 has 8 divisors (see below), whose sum is σ = 115087680. Its totient is φ = 107184672.

The previous prime is 111132011. The next prime is 111132037. The reversal of 111132031 is 130231111.

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 111132031 - 29 = 111131519 is a prime.

It is a super-2 number, since 2×1111320312 = 24700656628369922, 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 (111132037) 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, 39921 + ... + 42613.

It is an arithmetic number, because the mean of its divisors is an integer number (14385960).

Almost surely, 2111132031 is an apocalyptic number.

111132031 is a deficient number, since it is larger than the sum of its proper divisors (3955649).

111132031 is a wasteful number, since it uses less digits than its factorization.

111132031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145.

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

The square root of 111132031 is about 10541.9178046502. The cubic root of 111132031 is about 480.7800265765.

Adding to 111132031 its reverse (130231111), we get a palindrome (241363142).

The spelling of 111132031 in words is "one hundred eleven million, one hundred thirty-two thousand, thirty-one".

Divisors: 1 29 1423 2693 41267 78097 3832139 111132031