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113235213 = 37131034027
BaseRepresentation
bin1101011111111…
…01010100001101
321220001221111210
412233331110031
5212442011323
615123005033
72543324550
oct657752415
9256057453
10113235213
1158a11323
1231b09779
131a5c8ab0
1411078697
159e1b293
hex6bfd50d

113235213 has 32 divisors (see below), whose sum is σ = 187672576. Its totient is φ = 59133888.

The previous prime is 113235197. The next prime is 113235217. The reversal of 113235213 is 312532311.

It is not a de Polignac number, because 113235213 - 24 = 113235197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113235213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113235217) 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 31 ways as a sum of consecutive naturals, for example, 26106 + ... + 30132.

It is an arithmetic number, because the mean of its divisors is an integer number (5864768).

Almost surely, 2113235213 is an apocalyptic number.

113235213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113235213 is a deficient number, since it is larger than the sum of its proper divisors (74437363).

113235213 is a wasteful number, since it uses less digits than its factorization.

113235213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its digits is 540, while the sum is 21.

The square root of 113235213 is about 10641.2035503509. The cubic root of 113235213 is about 483.7940250647.

Adding to 113235213 its reverse (312532311), we get a palindrome (425767524).

The spelling of 113235213 in words is "one hundred thirteen million, two hundred thirty-five thousand, two hundred thirteen".

Divisors: 1 3 7 13 21 39 91 103 273 309 721 1339 2163 4017 4027 9373 12081 28119 28189 52351 84567 157053 366457 414781 1099371 1244343 2903467 5392153 8710401 16176459 37745071 113235213