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230200121 = 1072151403
BaseRepresentation
bin11011011100010…
…01001100111001
3121001011101012102
431232021030321
5432412400441
634501553145
75463445244
oct1556111471
9531141172
10230200121
11108a3a838
12651157b5
13388cc3b8
142280425b
151532269b
hexdb89339

230200121 has 4 divisors (see below), whose sum is σ = 232351632. Its totient is φ = 228048612.

The previous prime is 230200099. The next prime is 230200127. The reversal of 230200121 is 121002032.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-230200121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230200127) 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, 1075595 + ... + 1075808.

It is an arithmetic number, because the mean of its divisors is an integer number (58087908).

Almost surely, 2230200121 is an apocalyptic number.

It is an amenable number.

230200121 is a deficient number, since it is larger than the sum of its proper divisors (2151511).

230200121 is a wasteful number, since it uses less digits than its factorization.

230200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151510.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 230200121 is about 15172.3472475422. The cubic root of 230200121 is about 612.8702155012.

Adding to 230200121 its reverse (121002032), we get a palindrome (351202153).

The spelling of 230200121 in words is "two hundred thirty million, two hundred thousand, one hundred twenty-one".

Divisors: 1 107 2151403 230200121