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230404121 = 317432391
BaseRepresentation
bin11011011101110…
…11000000011001
3121001112202000222
431232323000121
5432440412441
634510205425
75465255063
oct1556730031
9531482028
10230404121
1110906a032
12651b3875
13389711cc
1422858733
1515362d4b
hexdbbb019

230404121 has 4 divisors (see below), whose sum is σ = 237836544. Its totient is φ = 222971700.

The previous prime is 230404117. The next prime is 230404123. The reversal of 230404121 is 121404032.

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.

It is a cyclic number.

It is not a de Polignac number, because 230404121 - 22 = 230404117 is a prime.

It is a super-3 number, since 3×2304041213 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230404121.

It is not an unprimeable number, because it can be changed into a prime (230404123) 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, 3716165 + ... + 3716226.

It is an arithmetic number, because the mean of its divisors is an integer number (59459136).

Almost surely, 2230404121 is an apocalyptic number.

It is an amenable number.

230404121 is a deficient number, since it is larger than the sum of its proper divisors (7432423).

230404121 is an equidigital number, since it uses as much as digits as its factorization.

230404121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7432422.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 230404121 is about 15179.0685155579. The cubic root of 230404121 is about 613.0512009407.

Adding to 230404121 its reverse (121404032), we get a palindrome (351808153).

The spelling of 230404121 in words is "two hundred thirty million, four hundred four thousand, one hundred twenty-one".

Divisors: 1 31 7432391 230404121