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1222057018 = 27136714599
BaseRepresentation
bin100100011010111…
…0001110000111010
310011011111221002001
41020311301300322
510000321311033
6321132531214
742166212310
oct11065616072
93134457061
101222057018
11577901586
122a1320b0a
13166247c80
14b84320b0
1572445e7d
hex48d71c3a

1222057018 has 16 divisors (see below), whose sum is σ = 2256105600. Its totient is φ = 483451056.

The previous prime is 1222057009. The next prime is 1222057049. The reversal of 1222057018 is 8107502221.

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, 3357118 + ... + 3357481.

It is an arithmetic number, because the mean of its divisors is an integer number (141006600).

Almost surely, 21222057018 is an apocalyptic number.

1222057018 is a deficient number, since it is larger than the sum of its proper divisors (1034048582).

1222057018 is a wasteful number, since it uses less digits than its factorization.

1222057018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714621.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 1222057018 is about 34957.9321184763. The cubic root of 1222057018 is about 1069.1299352631.

Adding to 1222057018 its reverse (8107502221), we get a palindrome (9329559239).

The spelling of 1222057018 in words is "one billion, two hundred twenty-two million, fifty-seven thousand, eighteen".

Divisors: 1 2 7 13 14 26 91 182 6714599 13429198 47002193 87289787 94004386 174579574 611028509 1222057018