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18227197034 = 2531031669463
BaseRepresentation
bin10000111110011011…
…001111010001101010
31202001021200112202122
4100332123033101222
5244312130301114
612212400031242
71213454422064
oct207633172152
952037615678
1018227197034
117803860a02
123648302522
13194631aab7
14c4ca8c734
1571a2d5e8e
hex43e6cf46a

18227197034 has 16 divisors (see below), whose sum is σ = 28127129472. Its totient is φ = 8854826448.

The previous prime is 18227197033. The next prime is 18227197057. The reversal of 18227197034 is 43079172281.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18227197033) by changing a digit.

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, 823814 + ... + 845649.

It is an arithmetic number, because the mean of its divisors is an integer number (1757945592).

Almost surely, 218227197034 is an apocalyptic number.

18227197034 is a deficient number, since it is larger than the sum of its proper divisors (9899932438).

18227197034 is a wasteful number, since it uses less digits than its factorization.

18227197034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669621.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 18227197034 in words is "eighteen billion, two hundred twenty-seven million, one hundred ninety-seven thousand, thirty-four".

Divisors: 1 2 53 103 106 206 5459 10918 1669463 3338926 88481539 171954689 176963078 343909378 9113598517 18227197034