Search a number
-
+
1344232305 = 325139723689
BaseRepresentation
bin101000000011111…
…0101101101110001
310110200102002001200
41100013311231301
510223110413210
6341215321413
745211533423
oct12007655561
93420362050
101344232305
1162a869699
12316220269
13185654040
14ca756813
157d02b0c0
hex501f5b71

1344232305 has 48 divisors (see below), whose sum is σ = 2535209040. Its totient is φ = 654925824.

The previous prime is 1344232303. The next prime is 1344232319. The reversal of 1344232305 is 5032324431.

1344232305 is a `hidden beast` number, since 1 + 3 + 4 + 423 + 230 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 436475664 + 907756641 = 20892^2 + 30129^2 .

It is not a de Polignac number, because 1344232305 - 21 = 1344232303 is a prime.

It is a super-2 number, since 2×13442323052 = 3613920979611226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1344232301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44901 + ... + 68589.

It is an arithmetic number, because the mean of its divisors is an integer number (52816855).

Almost surely, 21344232305 is an apocalyptic number.

1344232305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344232305 is a deficient number, since it is larger than the sum of its proper divisors (1190976735).

1344232305 is a wasteful number, since it uses less digits than its factorization.

1344232305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23810 (or 23807 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1344232305 is about 36663.7737419377. The cubic root of 1344232305 is about 1103.6332494173.

Adding to 1344232305 its reverse (5032324431), we get a palindrome (6376556736).

The spelling of 1344232305 in words is "one billion, three hundred forty-four million, two hundred thirty-two thousand, three hundred five".

Divisors: 1 3 5 9 13 15 39 45 65 97 117 195 291 485 585 873 1261 1455 3783 4365 6305 11349 18915 23689 56745 71067 118445 213201 307957 355335 923871 1066005 1539785 2297833 2771613 4619355 6893499 11489165 13858065 20680497 29871829 34467495 89615487 103402485 149359145 268846461 448077435 1344232305