Search a number
-
+
2144242925 = 52117797247
BaseRepresentation
bin111111111001110…
…1000110011101101
312112102202211022122
41333303220303231
513342411233200
6552434322325
7104064523046
oct17763506355
95472684278
102144242925
11a004074a0
124ba1293a5
1328230b9c6
14164ac58cd
15c83a6385
hex7fce8ced

2144242925 has 12 divisors (see below), whose sum is σ = 2900576256. Its totient is φ = 1559449200.

The previous prime is 2144242921. The next prime is 2144242927. The reversal of 2144242925 is 5292424412.

It is not a de Polignac number, because 2144242925 - 22 = 2144242921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144242921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3898349 + ... + 3898898.

It is an arithmetic number, because the mean of its divisors is an integer number (241714688).

Almost surely, 22144242925 is an apocalyptic number.

2144242925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2144242925 is a deficient number, since it is larger than the sum of its proper divisors (756333331).

2144242925 is a wasteful number, since it uses less digits than its factorization.

2144242925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7797268 (or 7797263 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 2144242925 is about 46305.9707273263. The cubic root of 2144242925 is about 1289.5098442281.

The spelling of 2144242925 in words is "two billion, one hundred forty-four million, two hundred forty-two thousand, nine hundred twenty-five".

Divisors: 1 5 11 25 55 275 7797247 38986235 85769717 194931175 428848585 2144242925