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230212222 = 2115106111
BaseRepresentation
bin11011011100011…
…00001001111110
3121001011222210121
431232030021332
5432413242342
634502125154
75463525442
oct1556141176
9531158717
10230212222
11108a48939
12651207ba
1338904a66
1422808822
1515326067
hexdb8c27e

230212222 has 4 divisors (see below), whose sum is σ = 345318336. Its totient is φ = 115106110.

The previous prime is 230212219. The next prime is 230212223. The reversal of 230212222 is 222212032.

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

It is a junction number, because it is equal to n+sod(n) for n = 230212196 and 230212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230212223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57553054 + ... + 57553057.

It is an arithmetic number, because the mean of its divisors is an integer number (86329584).

Almost surely, 2230212222 is an apocalyptic number.

230212222 is a deficient number, since it is larger than the sum of its proper divisors (115106114).

230212222 is a wasteful number, since it uses less digits than its factorization.

230212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115106113.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 230212222 is about 15172.7460270051. The cubic root of 230212222 is about 612.8809542916.

Adding to 230212222 its reverse (222212032), we get a palindrome (452424254).

The spelling of 230212222 in words is "two hundred thirty million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 115106111 230212222