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233681020 = 22511684051
BaseRepresentation
bin11011110110110…
…11000001111100
3121021201020002121
431323123001330
5434310243040
635104332324
75535153526
oct1573330174
9537636077
10233681020
1110a9a8011
12663140a4
133954a8c1
142306ca16
15157adc4a
hexdedb07c

233681020 has 12 divisors (see below), whose sum is σ = 490730184. Its totient is φ = 93472400.

The previous prime is 233680991. The next prime is 233681027. The reversal of 233681020 is 20186332.

233681020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233681027) 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 3 ways as a sum of consecutive naturals, for example, 5842006 + ... + 5842045.

It is an arithmetic number, because the mean of its divisors is an integer number (40894182).

Almost surely, 2233681020 is an apocalyptic number.

233681020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233681020 is an abundant number, since it is smaller than the sum of its proper divisors (257049164).

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

233681020 is a wasteful number, since it uses less digits than its factorization.

233681020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11684060 (or 11684058 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 233681020 is about 15286.6287977435. The cubic root of 233681020 is about 615.9438829804.

The spelling of 233681020 in words is "two hundred thirty-three million, six hundred eighty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 11684051 23368102 46736204 58420255 116840510 233681020