Search a number
-
+
1345224341 = 4331284287
BaseRepresentation
bin101000000101110…
…0111111010010101
310110202021110212202
41100023213322111
510223334134331
6341252454245
745223134566
oct12013477225
93422243782
101345224341
11630386a5a
1231661a385
13185910746
14ca93416d
157d174ecb
hex502e7e95

1345224341 has 4 divisors (see below), whose sum is σ = 1376508672. Its totient is φ = 1313940012.

The previous prime is 1345224319. The next prime is 1345224343. The reversal of 1345224341 is 1434225431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345224341 - 226 = 1278115477 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 (1345224343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15642101 + ... + 15642186.

It is an arithmetic number, because the mean of its divisors is an integer number (344127168).

Almost surely, 21345224341 is an apocalyptic number.

It is an amenable number.

1345224341 is a deficient number, since it is larger than the sum of its proper divisors (31284331).

1345224341 is an equidigital number, since it uses as much as digits as its factorization.

1345224341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31284330.

The product of its digits is 11520, while the sum is 29.

The square root of 1345224341 is about 36677.3000778411. The cubic root of 1345224341 is about 1103.9046744012.

Adding to 1345224341 its reverse (1434225431), we get a palindrome (2779449772).

The spelling of 1345224341 in words is "one billion, three hundred forty-five million, two hundred twenty-four thousand, three hundred forty-one".

Divisors: 1 43 31284287 1345224341