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440230249 = 1737016997
BaseRepresentation
bin11010001111010…
…110000101101001
31010200101000101001
4122033112011221
51400144331444
6111403355001
713623616054
oct3217260551
91120330331
10440230249
11206553558
12103522a61
1370288b94
1442677a9b
15289ad8d4
hex1a3d6169

440230249 has 8 divisors (see below), whose sum is σ = 466318728. Its totient is φ = 414163200.

The previous prime is 440230201. The next prime is 440230253. The reversal of 440230249 is 942032044.

It can be written as a sum of positive squares in 4 ways, for example, as 66504025 + 373726224 = 8155^2 + 19332^2 .

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 440230249 - 221 = 438133097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440231249) 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, 59419 + ... + 66415.

It is an arithmetic number, because the mean of its divisors is an integer number (58289841).

Almost surely, 2440230249 is an apocalyptic number.

It is an amenable number.

440230249 is a deficient number, since it is larger than the sum of its proper divisors (26088479).

440230249 is a wasteful number, since it uses less digits than its factorization.

440230249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 440230249 is about 20981.6645907802. The cubic root of 440230249 is about 760.7231396234.

The spelling of 440230249 in words is "four hundred forty million, two hundred thirty thousand, two hundred forty-nine".

Divisors: 1 17 3701 6997 62917 118949 25895897 440230249