Search a number
-
+
1244310205 = 5290985549
BaseRepresentation
bin100101000101010…
…1010101010111101
310012201101111201011
41022022222222331
510022020411310
6323245515221
742556314355
oct11212525275
93181344634
101244310205
11589420746
122a8872b11
1316aa39b38
14bb385b65
157438e78a
hex4a2aaabd

1244310205 has 8 divisors (see below), whose sum is σ = 1493703000. Its totient is φ = 995094336.

The previous prime is 1244310191. The next prime is 1244310211. The reversal of 1244310205 is 5020134421.

It can be written as a sum of positive squares in 4 ways, for example, as 44796249 + 1199513956 = 6693^2 + 34634^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1244310205 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28230 + ... + 57319.

It is an arithmetic number, because the mean of its divisors is an integer number (186712875).

Almost surely, 21244310205 is an apocalyptic number.

It is an amenable number.

1244310205 is a deficient number, since it is larger than the sum of its proper divisors (249392795).

1244310205 is an equidigital number, since it uses as much as digits as its factorization.

1244310205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88463.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1244310205 is about 35274.7814309316. The cubic root of 1244310205 is about 1075.5804199295.

Adding to 1244310205 its reverse (5020134421), we get a palindrome (6264444626).

The spelling of 1244310205 in words is "one billion, two hundred forty-four million, three hundred ten thousand, two hundred five".

Divisors: 1 5 2909 14545 85549 427745 248862041 1244310205