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113210143 = 412761223
BaseRepresentation
bin1101011111101…
…11001100011111
321220000200010021
412233313030133
5212440211033
615122253011
72543161504
oct657671437
9256020107
10113210143
11589a4502
1231ab7167
131a5ba567
141106d4ab
159e13b2d
hex6bf731f

113210143 has 4 divisors (see below), whose sum is σ = 115971408. Its totient is φ = 110448880.

The previous prime is 113210137. The next prime is 113210147. The reversal of 113210143 is 341012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341012311 = 893831599.

It is a cyclic number.

It is not a de Polignac number, because 113210143 - 225 = 79655711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113210147) 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 3 ways as a sum of consecutive naturals, for example, 1380571 + ... + 1380652.

It is an arithmetic number, because the mean of its divisors is an integer number (28992852).

Almost surely, 2113210143 is an apocalyptic number.

113210143 is a deficient number, since it is larger than the sum of its proper divisors (2761265).

113210143 is an equidigital number, since it uses as much as digits as its factorization.

113210143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761264.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113210143 is about 10640.0255168867. The cubic root of 113210143 is about 483.7583188237.

Adding to 113210143 its reverse (341012311), we get a palindrome (454222454).

The spelling of 113210143 in words is "one hundred thirteen million, two hundred ten thousand, one hundred forty-three".

Divisors: 1 41 2761223 113210143