Search a number
-
+
226309829 = 257987751
BaseRepresentation
bin11010111110100…
…11011011000101
3120202211201201112
431133103123011
5430413403304
634242334405
75415413264
oct1537233305
9522751645
10226309829
11106822a19
126395a405
1337b69755
14220b05db
1514d04b6e
hexd7d36c5

226309829 has 4 divisors (see below), whose sum is σ = 226400160. Its totient is φ = 226219500.

The previous prime is 226309819. The next prime is 226309847. The reversal of 226309829 is 928903622.

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 226309829 - 212 = 226305733 is a prime.

It is a super-2 number, since 2×2263098292 = 102432277404018482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226309819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41297 + ... + 46454.

It is an arithmetic number, because the mean of its divisors is an integer number (56600040).

Almost surely, 2226309829 is an apocalyptic number.

It is an amenable number.

226309829 is a deficient number, since it is larger than the sum of its proper divisors (90331).

226309829 is an equidigital number, since it uses as much as digits as its factorization.

226309829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90330.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 226309829 is about 15043.5976082851. The cubic root of 226309829 is about 609.3981603260.

The spelling of 226309829 in words is "two hundred twenty-six million, three hundred nine thousand, eight hundred twenty-nine".

Divisors: 1 2579 87751 226309829