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1230221234 = 211192943113
BaseRepresentation
bin100100101010011…
…1010111110110010
310011201212201021102
41021110322332302
510004414034414
6322023524402
742325464554
oct11124727662
93151781242
101230221234
11581478470
122a3bb9702
13167b46078
14b95594d4
1573009ede
hex4953afb2

1230221234 has 16 divisors (see below), whose sum is σ = 2119042080. Its totient is φ = 529760160.

The previous prime is 1230221233. The next prime is 1230221257. The reversal of 1230221234 is 4321220321.

It is not an unprimeable number, because it can be changed into a prime (1230221233) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1471139 + ... + 1471974.

It is an arithmetic number, because the mean of its divisors is an integer number (132440130).

Almost surely, 21230221234 is an apocalyptic number.

1230221234 is a deficient number, since it is larger than the sum of its proper divisors (888820846).

1230221234 is a wasteful number, since it uses less digits than its factorization.

1230221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943145.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230221234 is about 35074.5097471084. The cubic root of 1230221234 is about 1071.5055041156.

Adding to 1230221234 its reverse (4321220321), we get a palindrome (5551441555).

The spelling of 1230221234 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, two hundred thirty-four".

Divisors: 1 2 11 19 22 38 209 418 2943113 5886226 32374243 55919147 64748486 111838294 615110617 1230221234