Search a number
-
+
229130461 = 732732923
BaseRepresentation
bin11011010100001…
…00000011011101
3120222011000220101
431222010003131
5432124133321
634423021101
75451401560
oct1552040335
9528130811
10229130461
1110837a11a
126489a791
1338616571
14226064d7
15151b0791
hexda840dd

229130461 has 4 divisors (see below), whose sum is σ = 261863392. Its totient is φ = 196397532.

The previous prime is 229130459. The next prime is 229130467. The reversal of 229130461 is 164031922.

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, and also an emirpimes, since its reverse is a distinct semiprime: 164031922 = 282015961.

It is a cyclic number.

It is not a de Polignac number, because 229130461 - 21 = 229130459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229130467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16366455 + ... + 16366468.

It is an arithmetic number, because the mean of its divisors is an integer number (65465848).

Almost surely, 2229130461 is an apocalyptic number.

It is an amenable number.

229130461 is a deficient number, since it is larger than the sum of its proper divisors (32732931).

229130461 is an equidigital number, since it uses as much as digits as its factorization.

229130461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32732930.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 229130461 is about 15137.0558894390. The cubic root of 229130461 is about 611.9194763907.

The spelling of 229130461 in words is "two hundred twenty-nine million, one hundred thirty thousand, four hundred sixty-one".

Divisors: 1 7 32732923 229130461