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111241423 = 3123315401
BaseRepresentation
bin1101010000101…
…10100011001111
321202022122112201
412220112203033
5211434211143
615012142331
72520352006
oct650264317
9252278481
10111241423
115787a367
12313079a7
131a07b437
1410ab9c3d
159b7564d
hex6a168cf

111241423 has 8 divisors (see below), whose sum is σ = 115330176. Its totient is φ = 107184000.

The previous prime is 111241399. The next prime is 111241483. The reversal of 111241423 is 324142111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111241423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111241423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111241483) 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, 478 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (14416272).

Almost surely, 2111241423 is an apocalyptic number.

111241423 is a deficient number, since it is larger than the sum of its proper divisors (4088753).

111241423 is a wasteful number, since it uses less digits than its factorization.

111241423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665.

The product of its digits is 192, while the sum is 19.

The square root of 111241423 is about 10547.1049582338. The cubic root of 111241423 is about 480.9377256094.

Adding to 111241423 its reverse (324142111), we get a palindrome (435383534).

The spelling of 111241423 in words is "one hundred eleven million, two hundred forty-one thousand, four hundred twenty-three".

Divisors: 1 31 233 7223 15401 477431 3588433 111241423