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112313131 = 716044733
BaseRepresentation
bin1101011000111…
…00001100101011
321211100002122121
412230130030223
5212223010011
615051132111
72532434350
oct654341453
9254302577
10112313131
1158441577
1231744037
131a365198
1410cb8627
159cd7e71
hex6b1c32b

112313131 has 4 divisors (see below), whose sum is σ = 128357872. Its totient is φ = 96268392.

The previous prime is 112313107. The next prime is 112313137. The reversal of 112313131 is 131313211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131313211 = 436330097.

It is a cyclic number.

It is not a de Polignac number, because 112313131 - 211 = 112311083 is a prime.

It is a super-2 number, since 2×1123131312 = 25228478790046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112313137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8022360 + ... + 8022373.

It is an arithmetic number, because the mean of its divisors is an integer number (32089468).

Almost surely, 2112313131 is an apocalyptic number.

112313131 is a deficient number, since it is larger than the sum of its proper divisors (16044741).

112313131 is an equidigital number, since it uses as much as digits as its factorization.

112313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16044740.

The product of its digits is 54, while the sum is 16.

The square root of 112313131 is about 10597.7889675158. The cubic root of 112313131 is about 482.4772552300.

Adding to 112313131 its reverse (131313211), we get a palindrome (243626342).

The spelling of 112313131 in words is "one hundred twelve million, three hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 7 16044733 112313131