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2043120125 = 5316344961
BaseRepresentation
bin111100111000111…
…1000100111111101
312021101111020220202
41321301320213331
513141014321000
6534423053245
7101426143304
oct17161704775
95241436822
102043120125
11959319432
124902a1225
13267394127
141554c143b
15be57ddd5
hex79c789fd

2043120125 has 8 divisors (see below), whose sum is σ = 2549814072. Its totient is φ = 1634496000.

The previous prime is 2043120119. The next prime is 2043120133. The reversal of 2043120125 is 5210213402.

It can be written as a sum of positive squares in 4 ways, for example, as 31956409 + 2011163716 = 5653^2 + 44846^2 .

It is not a de Polignac number, because 2043120125 - 24 = 2043120109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2043120097 and 2043120106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8172356 + ... + 8172605.

It is an arithmetic number, because the mean of its divisors is an integer number (318726759).

Almost surely, 22043120125 is an apocalyptic number.

2043120125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2043120125 is a deficient number, since it is larger than the sum of its proper divisors (506693947).

2043120125 is an equidigital number, since it uses as much as digits as its factorization.

2043120125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16344976 (or 16344966 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2043120125 is about 45200.8863298055. The cubic root of 2043120125 is about 1268.9114041549.

Adding to 2043120125 its reverse (5210213402), we get a palindrome (7253333527).

The spelling of 2043120125 in words is "two billion, forty-three million, one hundred twenty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 16344961 81724805 408624025 2043120125