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113442321 = 337814107
BaseRepresentation
bin1101100001011…
…11111000010001
321220110110121110
412300233320101
5213020123241
615131243533
72545146426
oct660577021
9256413543
10113442321
1159042993
1231ba95a9
131a66c145
14110cdd4d
159e5c816
hex6c2fe11

113442321 has 4 divisors (see below), whose sum is σ = 151256432. Its totient is φ = 75628212.

The previous prime is 113442317. The next prime is 113442347. The reversal of 113442321 is 123244311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123244311 = 341081437.

It is not a de Polignac number, because 113442321 - 22 = 113442317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113442311) 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, 18907051 + ... + 18907056.

It is an arithmetic number, because the mean of its divisors is an integer number (37814108).

Almost surely, 2113442321 is an apocalyptic number.

It is an amenable number.

113442321 is a deficient number, since it is larger than the sum of its proper divisors (37814111).

113442321 is an equidigital number, since it uses as much as digits as its factorization.

113442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37814110.

The product of its digits is 576, while the sum is 21.

The square root of 113442321 is about 10650.9305227290. The cubic root of 113442321 is about 484.0887996462.

Adding to 113442321 its reverse (123244311), we get a palindrome (236686632).

The spelling of 113442321 in words is "one hundred thirteen million, four hundred forty-two thousand, three hundred twenty-one".

Divisors: 1 3 37814107 113442321