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230402222 = 2115201111
BaseRepresentation
bin11011011101110…
…10100010101110
3121001112122102122
431232322202232
5432440332342
634510152542
75465246411
oct1556724256
9531478378
10230402222
11109068666
12651b2752
133897039b
1422857b78
15153624d2
hexdbba8ae

230402222 has 4 divisors (see below), whose sum is σ = 345603336. Its totient is φ = 115201110.

The previous prime is 230402209. The next prime is 230402239. The reversal of 230402222 is 222204032.

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

It is a self number, because there is not a number n which added to its sum of digits gives 230402222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57600554 + ... + 57600557.

It is an arithmetic number, because the mean of its divisors is an integer number (86400834).

Almost surely, 2230402222 is an apocalyptic number.

230402222 is a deficient number, since it is larger than the sum of its proper divisors (115201114).

230402222 is a wasteful number, since it uses less digits than its factorization.

230402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115201113.

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

The square root of 230402222 is about 15179.0059621834. The cubic root of 230402222 is about 613.0495166719.

Adding to 230402222 its reverse (222204032), we get a palindrome (452606254).

The spelling of 230402222 in words is "two hundred thirty million, four hundred two thousand, two hundred twenty-two".

Divisors: 1 2 115201111 230402222