Search a number
-
+
226129307 = 239831709
BaseRepresentation
bin11010111101001…
…11010110011011
3120202111120002112
431132213112123
5430342114212
634234422535
75414032055
oct1536472633
9522446075
10226129307
1110670a328
1263891a4b
1337b05531
14220648d5
1514cbb422
hexd7a759b

226129307 has 4 divisors (see below), whose sum is σ = 235961040. Its totient is φ = 216297576.

The previous prime is 226129297. The next prime is 226129313. The reversal of 226129307 is 703921622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703921622 = 2351960811.

It is a cyclic number.

It is not a de Polignac number, because 226129307 - 214 = 226112923 is a prime.

It is a super-2 number, since 2×2261293072 = 102268926968600498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226129357) 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, 4915832 + ... + 4915877.

It is an arithmetic number, because the mean of its divisors is an integer number (58990260).

Almost surely, 2226129307 is an apocalyptic number.

226129307 is a deficient number, since it is larger than the sum of its proper divisors (9831733).

226129307 is an equidigital number, since it uses as much as digits as its factorization.

226129307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831732.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 226129307 is about 15037.5964502310. The cubic root of 226129307 is about 609.2360830550.

The spelling of 226129307 in words is "two hundred twenty-six million, one hundred twenty-nine thousand, three hundred seven".

Divisors: 1 23 9831709 226129307