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113003231 = 113591439
BaseRepresentation
bin1101011110001…
…00101011011111
321212122011021212
412233010223133
5212412100411
615114015035
72541340325
oct657045337
9255564255
10113003231
1158873000
1231a1747b
131a547323
1411017d15
159dc268b
hex6bc4adf

113003231 has 16 divisors (see below), whose sum is σ = 126489600. Its totient is φ = 100918840.

The previous prime is 113003221. The next prime is 113003249. The reversal of 113003231 is 132300311.

It is not a de Polignac number, because 113003231 - 26 = 113003167 is a prime.

It is a super-2 number, since 2×1130032312 = 25539460432878722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113003201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77810 + ... + 79248.

It is an arithmetic number, because the mean of its divisors is an integer number (7905600).

Almost surely, 2113003231 is an apocalyptic number.

113003231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113003231 is a deficient number, since it is larger than the sum of its proper divisors (13486369).

113003231 is an equidigital number, since it uses as much as digits as its factorization.

113003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 113003231 is about 10630.2977851046. The cubic root of 113003231 is about 483.4634205004.

Adding to 113003231 its reverse (132300311), we get a palindrome (245303542).

The spelling of 113003231 in words is "one hundred thirteen million, three thousand, two hundred thirty-one".

Divisors: 1 11 59 121 649 1331 1439 7139 15829 78529 84901 174119 933911 1915309 10273021 113003231