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18222585704 = 232277823213
BaseRepresentation
bin10000111110001001…
…101001011101101000
31202000222000021012122
4100332021221131220
5244304440220304
612212113130412
71213400265011
oct207611513550
952028007178
1018222585704
1178011a1394
123646859a08
131945394bbb
14c4c20c008
15719bc49be
hex43e269768

18222585704 has 8 divisors (see below), whose sum is σ = 34167348210. Its totient is φ = 9111292848.

The previous prime is 18222585649. The next prime is 18222585707. The reversal of 18222585704 is 40758522281.

It can be written as a sum of positive squares in only one way, i.e., 10086184900 + 8136400804 = 100430^2 + 90202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18222585707) 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 as a sum of consecutive naturals, namely, 1138911599 + ... + 1138911614.

Almost surely, 218222585704 is an apocalyptic number.

It is an amenable number.

18222585704 is a deficient number, since it is larger than the sum of its proper divisors (15944762506).

18222585704 is a wasteful number, since it uses less digits than its factorization.

18222585704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277823219 (or 2277823215 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 18222585704 in words is "eighteen billion, two hundred twenty-two million, five hundred eighty-five thousand, seven hundred four".

Divisors: 1 2 4 8 2277823213 4555646426 9111292852 18222585704