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230011021213 = 254390448691
BaseRepresentation
bin1101011000110110111…
…0011010011110011101
3210222200212022112010121
43112031232122132131
512232030310134323
6253355434234541
722421613264451
oct3261556323635
9728625275117
10230011021213
1189602252676
12386b2285a51
13188c7a728ac
14b1bdb98661
155eb3028a5d
hex358db9a79d

230011021213 has 4 divisors (see below), whose sum is σ = 230101472448. Its totient is φ = 229920569980.

The previous prime is 230011021189. The next prime is 230011021249. The reversal of 230011021213 is 312120110032.

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-230011021213 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 (230011021613) 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, 45221803 + ... + 45226888.

It is an arithmetic number, because the mean of its divisors is an integer number (57525368112).

Almost surely, 2230011021213 is an apocalyptic number.

It is an amenable number.

230011021213 is a deficient number, since it is larger than the sum of its proper divisors (90451235).

230011021213 is an equidigital number, since it uses as much as digits as its factorization.

230011021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90451234.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 230011021213 its reverse (312120110032), we get a palindrome (542131131245).

The spelling of 230011021213 in words is "two hundred thirty billion, eleven million, twenty-one thousand, two hundred thirteen".

Divisors: 1 2543 90448691 230011021213