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2124332125 = 5316994657
BaseRepresentation
bin111111010011110…
…1011110001011101
312111001022020211121
41332213223301131
513322312112000
6550443450541
7103433345056
oct17647536135
95431266747
102124332125
119a0148193
124b3526a51
1327b15a076
141621c172d
15c6771b1a
hex7e9ebc5d

2124332125 has 8 divisors (see below), whose sum is σ = 2651166648. Its totient is φ = 1699465600.

The previous prime is 2124332123. The next prime is 2124332143. The reversal of 2124332125 is 5212334212.

It can be written as a sum of positive squares in 4 ways, for example, as 415915236 + 1708416889 = 20394^2 + 41333^2 .

It is not a de Polignac number, because 2124332125 - 21 = 2124332123 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2124332125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124332123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8497204 + ... + 8497453.

It is an arithmetic number, because the mean of its divisors is an integer number (331395831).

Almost surely, 22124332125 is an apocalyptic number.

2124332125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2124332125 is a deficient number, since it is larger than the sum of its proper divisors (526834523).

2124332125 is an equidigital number, since it uses as much as digits as its factorization.

2124332125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16994672 (or 16994662 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 2124332125 is about 46090.4775957030. The cubic root of 2124332125 is about 1285.5060914361.

Adding to 2124332125 its reverse (5212334212), we get a palindrome (7336666337).

The spelling of 2124332125 in words is "two billion, one hundred twenty-four million, three hundred thirty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 125 16994657 84973285 424866425 2124332125