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230421503 = 1319989069
BaseRepresentation
bin11011011101111…
…11001111111111
3121001120121212202
431232333033333
5432441442003
634510422115
75465356544
oct1556771777
9531517782
10230421503
111090810a4
126520193b
13389790b0
1422860bcb
1515368088
hexdbbf3ff

230421503 has 8 divisors (see below), whose sum is σ = 249396000. Its totient is φ = 211625568.

The previous prime is 230421487. The next prime is 230421511. The reversal of 230421503 is 305124032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230421503 - 24 = 230421487 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 (230421593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41948 + ... + 47121.

It is an arithmetic number, because the mean of its divisors is an integer number (31174500).

Almost surely, 2230421503 is an apocalyptic number.

230421503 is a deficient number, since it is larger than the sum of its proper divisors (18974497).

230421503 is a wasteful number, since it uses less digits than its factorization.

230421503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89281.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230421503 is about 15179.6410695378. The cubic root of 230421503 is about 613.0666170249.

Adding to 230421503 its reverse (305124032), we get a palindrome (535545535).

The spelling of 230421503 in words is "two hundred thirty million, four hundred twenty-one thousand, five hundred three".

Divisors: 1 13 199 2587 89069 1157897 17724731 230421503