Search a number
-
+
2123430341 = 16071321363
BaseRepresentation
bin111111010010000…
…1111100111000101
312110222121102211012
41332210033213011
513322044232331
6550412252005
7103422601004
oct17644174705
95428542735
102123430341
1199a69170a
124b3171005
1327ac02776
14162028c3b
15c664482b
hex7e90f9c5

2123430341 has 4 divisors (see below), whose sum is σ = 2124753312. Its totient is φ = 2122107372.

The previous prime is 2123430247. The next prime is 2123430377. The reversal of 2123430341 is 1430343212.

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 2123430341 - 218 = 2123168197 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123430391) 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, 659075 + ... + 662288.

It is an arithmetic number, because the mean of its divisors is an integer number (531188328).

Almost surely, 22123430341 is an apocalyptic number.

It is an amenable number.

2123430341 is a deficient number, since it is larger than the sum of its proper divisors (1322971).

2123430341 is a wasteful number, since it uses less digits than its factorization.

2123430341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322970.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2123430341 is about 46080.6937990304. The cubic root of 2123430341 is about 1285.3241655679.

Adding to 2123430341 its reverse (1430343212), we get a palindrome (3553773553).

The spelling of 2123430341 in words is "two billion, one hundred twenty-three million, four hundred thirty thousand, three hundred forty-one".

Divisors: 1 1607 1321363 2123430341