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10782103138 = 25391051569
BaseRepresentation
bin10100000101010100…
…11101011001100010
31000211102102120221021
422002222131121202
5134040204300023
64541521520054
7531122236012
oct120252353142
930742376837
1010782103138
114633241744
12210aaa302a
13102aa452b1
14743d8dc42
1543189c35d
hex282a9d662

10782103138 has 4 divisors (see below), whose sum is σ = 16173154710. Its totient is φ = 5391051568.

The previous prime is 10782103121. The next prime is 10782103181. The reversal of 10782103138 is 83130128701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83130128701 = 431933258807.

It can be written as a sum of positive squares in only one way, i.e., 7113741649 + 3668361489 = 84343^2 + 60567^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2695525783 + ... + 2695525786.

Almost surely, 210782103138 is an apocalyptic number.

10782103138 is a deficient number, since it is larger than the sum of its proper divisors (5391051572).

10782103138 is an equidigital number, since it uses as much as digits as its factorization.

10782103138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391051571.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 10782103138 in words is "ten billion, seven hundred eighty-two million, one hundred three thousand, one hundred thirty-eight".

Divisors: 1 2 5391051569 10782103138