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230233223021 = 713242721451
BaseRepresentation
bin1101011001101011111…
…0000010111101101101
3211000021100102112201012
43112122332002331231
512233004201114041
6253433452555005
722430252051234
oct3263276027555
9730240375635
10230233223021
118970671a12a
1238754782a65
1318931b01559
14b2014b9b1b
155ec77bb3eb
hex359af82f6d

230233223021 has 4 divisors (see below), whose sum is σ = 233475944544. Its totient is φ = 226990501500.

The previous prime is 230233222979. The next prime is 230233223027. The reversal of 230233223021 is 120322332032.

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 230233223021 - 210 = 230233221997 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 (230233223027) 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 3 ways as a sum of consecutive naturals, for example, 1621360655 + ... + 1621360796.

It is an arithmetic number, because the mean of its divisors is an integer number (58368986136).

Almost surely, 2230233223021 is an apocalyptic number.

It is an amenable number.

230233223021 is a deficient number, since it is larger than the sum of its proper divisors (3242721523).

230233223021 is an equidigital number, since it uses as much as digits as its factorization.

230233223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242721522.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 230233223021 its reverse (120322332032), we get a palindrome (350555555053).

The spelling of 230233223021 in words is "two hundred thirty billion, two hundred thirty-three million, two hundred twenty-three thousand, twenty-one".

Divisors: 1 71 3242721451 230233223021