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2250115405 = 51009446009
BaseRepresentation
bin1000011000011110…
…0000100101001101
312210210222201001121
42012013200211031
514102012143110
61011135440541
7106521444136
oct20607404515
95723881047
102250115405
11a5514a00a
12529686151
1329b22a445
14174ba4c8d
15d281acda
hex861e094d

2250115405 has 8 divisors (see below), whose sum is σ = 2702820600. Its totient is φ = 1798304256.

The previous prime is 2250115403. The next prime is 2250115421. The reversal of 2250115405 is 5045110522.

It can be written as a sum of positive squares in 4 ways, for example, as 347934409 + 1902180996 = 18653^2 + 43614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2250115405 - 21 = 2250115403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2250115405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250115403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217960 + ... + 228049.

It is an arithmetic number, because the mean of its divisors is an integer number (337852575).

Almost surely, 22250115405 is an apocalyptic number.

It is an amenable number.

2250115405 is a deficient number, since it is larger than the sum of its proper divisors (452705195).

2250115405 is a wasteful number, since it uses less digits than its factorization.

2250115405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447023.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2250115405 is about 47435.3813624387. The cubic root of 2250115405 is about 1310.3931001778.

Adding to 2250115405 its reverse (5045110522), we get a palindrome (7295225927).

The spelling of 2250115405 in words is "two billion, two hundred fifty million, one hundred fifteen thousand, four hundred five".

Divisors: 1 5 1009 5045 446009 2230045 450023081 2250115405