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1052120204125 = 5344918746017
BaseRepresentation
bin11110100111101110100…
…00000100001101011101
310201120201001210010101121
433103313100010031131
5114214220233013000
62123200511210541
7136004343114634
oct17236720041535
93646631703347
101052120204125
11376224476761
1214baa8b16a51
13782a337b703
1438ccc5a251b
151c57c314b1a
hexf4f740435d

1052120204125 has 16 divisors (see below), whose sum is σ = 1315970463600. Its totient is φ = 839821516800.

The previous prime is 1052120204117. The next prime is 1052120204207. The reversal of 1052120204125 is 5214020212501.

It can be written as a sum of positive squares in 8 ways, for example, as 31668693849 + 1020451510276 = 177957^2 + 1010174^2 .

It is not a de Polignac number, because 1052120204125 - 23 = 1052120204117 is a prime.

It is a super-2 number, since 2×10521202041252 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1052120204125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9316884 + ... + 9429133.

It is an arithmetic number, because the mean of its divisors is an integer number (82248153975).

Almost surely, 21052120204125 is an apocalyptic number.

It is an amenable number.

1052120204125 is a deficient number, since it is larger than the sum of its proper divisors (263850259475).

1052120204125 is an equidigital number, since it uses as much as digits as its factorization.

1052120204125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18746481 (or 18746471 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 1052120204125 its reverse (5214020212501), we get a palindrome (6266140416626).

The spelling of 1052120204125 in words is "one trillion, fifty-two billion, one hundred twenty million, two hundred four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 449 2245 11225 56125 18746017 93730085 468650425 2343252125 8416961633 42084808165 210424040825 1052120204125