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18292828282 = 29146414141
BaseRepresentation
bin10001000010010101…
…100110100001111010
31202012212011221220121
4101002111212201322
5244430431001112
612223102443454
71215212321611
oct210225464172
952185157817
1018292828282
117837908703
12366629358a
131956ab9c61
14c57694878
15720e4c407
hex44256687a

18292828282 has 4 divisors (see below), whose sum is σ = 27439242426. Its totient is φ = 9146414140.

The previous prime is 18292828277. The next prime is 18292828319. The reversal of 18292828282 is 28282829281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17966989681 + 325838601 = 134041^2 + 18051^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4573207069 + ... + 4573207072.

Almost surely, 218292828282 is an apocalyptic number.

18292828282 is a deficient number, since it is larger than the sum of its proper divisors (9146414144).

18292828282 is an equidigital number, since it uses as much as digits as its factorization.

18292828282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9146414143.

The product of its digits is 1179648, while the sum is 52.

Subtracting 18292828282 from its reverse (28282829281), we obtain a palindrome (9990000999).

The spelling of 18292828282 in words is "eighteen billion, two hundred ninety-two million, eight hundred twenty-eight thousand, two hundred eighty-two".

Divisors: 1 2 9146414141 18292828282