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1230221302 = 22716413541
BaseRepresentation
bin100100101010011…
…1010111111110110
310011201212201100221
41021110322333312
510004414040202
6322023524554
742325465012
oct11124727766
93151781327
101230221302
11581478522
122a3bb975a
13167b460cb
14b9559542
157300a037
hex4953aff6

1230221302 has 16 divisors (see below), whose sum is σ = 1855554624. Its totient is φ = 611712000.

The previous prime is 1230221297. The next prime is 1230221323. The reversal of 1230221302 is 2031220321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345652 + ... + 349192.

It is an arithmetic number, because the mean of its divisors is an integer number (115972164).

Almost surely, 21230221302 is an apocalyptic number.

1230221302 is a deficient number, since it is larger than the sum of its proper divisors (625333322).

1230221302 is a wasteful number, since it uses less digits than its factorization.

1230221302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1230221302 is about 35074.5107164733. The cubic root of 1230221302 is about 1071.5055238579.

Adding to 1230221302 its reverse (2031220321), we get a palindrome (3261441623).

The spelling of 1230221302 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, three hundred two".

Divisors: 1 2 271 542 641 1282 3541 7082 173711 347422 959611 1919222 2269781 4539562 615110651 1230221302