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113221241 = 717255967
BaseRepresentation
bin1101011111110…
…01111001111001
321220001020100022
412233321321321
5212441034431
615122420225
72543236040
oct657717171
9256036308
10113221241
1158a01881
1231b01675
131a5c2623
1411073557
159e1707b
hex6bf9e79

113221241 has 12 divisors (see below), whose sum is σ = 137457408. Its totient is φ = 91336512.

The previous prime is 113221217. The next prime is 113221253. The reversal of 113221241 is 142122311.

It is not a de Polignac number, because 113221241 - 214 = 113204857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25961 + ... + 30006.

It is an arithmetic number, because the mean of its divisors is an integer number (11454784).

Almost surely, 2113221241 is an apocalyptic number.

It is an amenable number.

113221241 is a deficient number, since it is larger than the sum of its proper divisors (24236167).

113221241 is an equidigital number, since it uses as much as digits as its factorization.

113221241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56008 (or 55991 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 113221241 is about 10640.5470254118. The cubic root of 113221241 is about 483.7741259303.

Adding to 113221241 its reverse (142122311), we get a palindrome (255343552).

The spelling of 113221241 in words is "one hundred thirteen million, two hundred twenty-one thousand, two hundred forty-one".

Divisors: 1 7 17 119 289 2023 55967 391769 951439 6660073 16174463 113221241