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230403837 = 376801279
BaseRepresentation
bin11011011101110…
…10111011111101
3121001112201122110
431232322323331
5432440410322
634510204233
75465254206
oct1556727375
9531481573
10230403837
111090698a4
12651b3679
1338971041
14228585ad
1515362c0c
hexdbbaefd

230403837 has 4 divisors (see below), whose sum is σ = 307205120. Its totient is φ = 153602556.

The previous prime is 230403829. The next prime is 230403851. The reversal of 230403837 is 738304032.

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 not a de Polignac number, because 230403837 - 23 = 230403829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230403827) 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, 38400637 + ... + 38400642.

It is an arithmetic number, because the mean of its divisors is an integer number (76801280).

Almost surely, 2230403837 is an apocalyptic number.

It is an amenable number.

230403837 is a deficient number, since it is larger than the sum of its proper divisors (76801283).

230403837 is an equidigital number, since it uses as much as digits as its factorization.

230403837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76801282.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 230403837 is about 15179.0591605672. The cubic root of 230403837 is about 613.0509490549.

Adding to 230403837 its reverse (738304032), we get a palindrome (968707869).

The spelling of 230403837 in words is "two hundred thirty million, four hundred three thousand, eight hundred thirty-seven".

Divisors: 1 3 76801279 230403837