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230222222 = 2115111111
BaseRepresentation
bin11011011100011…
…10100110001110
3121001012111111222
431232032212032
5432414102342
634502243342
75463566546
oct1556164616
9531174458
10230222222
11108a553aa
1265126552
1338909489
142280c326
1515328ed2
hexdb8e98e

230222222 has 4 divisors (see below), whose sum is σ = 345333336. Its totient is φ = 115111110.

The previous prime is 230222149. The next prime is 230222231. The reversal of 230222222 is 222222032.

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

230222222 is a modest number, since divided by 22222 gives 2302 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 230222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57555554 + ... + 57555557.

It is an arithmetic number, because the mean of its divisors is an integer number (86333334).

Almost surely, 2230222222 is an apocalyptic number.

230222222 is a deficient number, since it is larger than the sum of its proper divisors (115111114).

230222222 is a wasteful number, since it uses less digits than its factorization.

230222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115111113.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 230222222 is about 15173.0755616651. The cubic root of 230222222 is about 612.8898283076.

Adding to 230222222 its reverse (222222032), we get a palindrome (452444254).

The spelling of 230222222 in words is "two hundred thirty million, two hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 115111111 230222222