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12213030242 = 272006343481
BaseRepresentation
bin10110101111111010…
…00000110101100010
31011112010222012220102
423113331000311202
5200003013431432
65335515342402
7611436021110
oct132775006542
934463865812
1012213030242
1151a7a34426
12244a151a02
1311c8331a1a
1483c032ab0
154b7300962
hex2d7f40d62

12213030242 has 16 divisors (see below), whose sum is σ = 20938148352. Its totient is φ = 5233774560.

The previous prime is 12213030173. The next prime is 12213030257. The reversal of 12213030242 is 24203031221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259142 + ... + 302622.

It is an arithmetic number, because the mean of its divisors is an integer number (1308634272).

Almost surely, 212213030242 is an apocalyptic number.

12213030242 is a deficient number, since it is larger than the sum of its proper divisors (8725118110).

12213030242 is a wasteful number, since it uses less digits than its factorization.

12213030242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63553.

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

Adding to 12213030242 its reverse (24203031221), we get a palindrome (36416061463).

The spelling of 12213030242 in words is "twelve billion, two hundred thirteen million, thirty thousand, two hundred forty-two".

Divisors: 1 2 7 14 20063 40126 43481 86962 140441 280882 304367 608734 872359303 1744718606 6106515121 12213030242