Search a number
-
+
112730081 is a prime number
BaseRepresentation
bin1101011100000…
…01111111100001
321212010021121012
412232001333201
5212324330311
615104110305
72536122062
oct656017741
9255107535
10112730081
11586a6862
1231905395
131a47cbb9
1410d86569
159d6b78b
hex6b81fe1

112730081 has 2 divisors, whose sum is σ = 112730082. Its totient is φ = 112730080.

The previous prime is 112730069. The next prime is 112730119. The reversal of 112730081 is 180037211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112699456 + 30625 = 10616^2 + 175^2 .

It is an emirp because it is prime and its reverse (180037211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112730081 is a prime.

It is a super-2 number, since 2×1127300812 = 25416142324533122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (112730041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56365040 + 56365041.

It is an arithmetic number, because the mean of its divisors is an integer number (56365041).

Almost surely, 2112730081 is an apocalyptic number.

It is an amenable number.

112730081 is a deficient number, since it is larger than the sum of its proper divisors (1).

112730081 is an equidigital number, since it uses as much as digits as its factorization.

112730081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 112730081 is about 10617.4423002906. The cubic root of 112730081 is about 483.0735656314.

Adding to 112730081 its reverse (180037211), we get a palindrome (292767292).

The spelling of 112730081 in words is "one hundred twelve million, seven hundred thirty thousand, eighty-one".