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113230420 = 2255661521
BaseRepresentation
bin1101011111111…
…00001001010100
321220001200221021
412233330021110
5212441333140
615122530524
72543304562
oct657741124
9256050837
10113230420
1158a08766
1231b06a44
131a5c6864
1411076a32
159e19b4a
hex6bfc254

113230420 has 12 divisors (see below), whose sum is σ = 237783924. Its totient is φ = 45292160.

The previous prime is 113230417. The next prime is 113230451. The reversal of 113230420 is 24032311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 83832336 = 5422^2 + 9156^2 .

It is a super-2 number, since 2×1132304202 = 25642256026752800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113230394 and 113230403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2830741 + ... + 2830780.

It is an arithmetic number, because the mean of its divisors is an integer number (19815327).

Almost surely, 2113230420 is an apocalyptic number.

113230420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113230420 is an abundant number, since it is smaller than the sum of its proper divisors (124553504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113230420 is a wasteful number, since it uses less digits than its factorization.

113230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661530 (or 5661528 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 113230420 is about 10640.9783384800. The cubic root of 113230420 is about 483.7871989858.

Adding to 113230420 its reverse (24032311), we get a palindrome (137262731).

The spelling of 113230420 in words is "one hundred thirteen million, two hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5661521 11323042 22646084 28307605 56615210 113230420