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2125247207 = 2780976423
BaseRepresentation
bin111111010101100…
…1011001011100111
312111010000202002112
41332223023023213
513323030402312
6550515231235
7103444205666
oct17653131347
95433022075
102125247207
119a0712756
124b38a851b
1327b3ba735
1416237cddd
15c68a2d22
hex7eacb2e7

2125247207 has 4 divisors (see below), whose sum is σ = 2125351440. Its totient is φ = 2125142976.

The previous prime is 2125247203. The next prime is 2125247213. The reversal of 2125247207 is 7027425212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2125247207 - 22 = 2125247203 is a prime.

It is a super-2 number, since 2×21252472072 = 9033351381722601698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125247203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10403 + ... + 66020.

It is an arithmetic number, because the mean of its divisors is an integer number (531337860).

Almost surely, 22125247207 is an apocalyptic number.

2125247207 is a deficient number, since it is larger than the sum of its proper divisors (104233).

2125247207 is an equidigital number, since it uses as much as digits as its factorization.

2125247207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104232.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 2125247207 is about 46100.4035448715. The cubic root of 2125247207 is about 1285.6906474202.

The spelling of 2125247207 in words is "two billion, one hundred twenty-five million, two hundred forty-seven thousand, two hundred seven".

Divisors: 1 27809 76423 2125247207