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30231022223 = 89339674407
BaseRepresentation
bin11100001001111010…
…001100101010001111
32220000212000001021202
4130021322030222033
5443403120202343
621515443420115
72120103310013
oct341172145217
986025001252
1030231022223
1111903695496
125a3838463b
132b0a1c173c
14166adc4543
15bbe05edb8
hex709e8ca8f

30231022223 has 4 divisors (see below), whose sum is σ = 30570696720. Its totient is φ = 29891347728.

The previous prime is 30231022219. The next prime is 30231022319. The reversal of 30231022223 is 32222013203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30231022223 - 22 = 30231022219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231022195 and 30231022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231024223) 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, 169837115 + ... + 169837292.

It is an arithmetic number, because the mean of its divisors is an integer number (7642674180).

Almost surely, 230231022223 is an apocalyptic number.

30231022223 is a deficient number, since it is larger than the sum of its proper divisors (339674497).

30231022223 is an equidigital number, since it uses as much as digits as its factorization.

30231022223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339674496.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30231022223 its reverse (32222013203), we get a palindrome (62453035426).

The spelling of 30231022223 in words is "thirty billion, two hundred thirty-one million, twenty-two thousand, two hundred twenty-three".

Divisors: 1 89 339674407 30231022223