Search a number
-
+
30222120223 = 373129162761
BaseRepresentation
bin11100001001011000…
…001111010100011111
32220000020020210001001
4130021120033110133
5443343330321343
621514524531131
72116634532451
oct341130172437
986006223031
1030222120223
11118a9665269
125a353b0aa7
132b083c5899
141669b482d1
15bbd3a244d
hex70960f51f

30222120223 has 8 divisors (see below), whose sum is σ = 30327100496. Its totient is φ = 30117268800.

The previous prime is 30222120211. The next prime is 30222120239. The reversal of 30222120223 is 32202122203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30222120223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30222120223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222120263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450163 + ... + 512923.

It is an arithmetic number, because the mean of its divisors is an integer number (3790887562).

Almost surely, 230222120223 is an apocalyptic number.

30222120223 is a deficient number, since it is larger than the sum of its proper divisors (104980273).

30222120223 is a wasteful number, since it uses less digits than its factorization.

30222120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64425.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30222120223 its reverse (32202122203), we get a palindrome (62424242426).

The spelling of 30222120223 in words is "thirty billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twenty-three".

Divisors: 1 373 1291 62761 481543 23409853 81024451 30222120223