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226245137 = 511344249
BaseRepresentation
bin11010111110000…
…11101000010001
3120202201102222112
431133003220101
5430404321022
634241115105
75415023546
oct1537035021
9522642875
10226245137
11106789358
1263928a95
1337b46181
1422094bcd
1514ce08e2
hexd7c3a11

226245137 has 4 divisors (see below), whose sum is σ = 226294500. Its totient is φ = 226195776.

The previous prime is 226245133. The next prime is 226245143. The reversal of 226245137 is 731542622.

226245137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2563201 + 223681936 = 1601^2 + 14956^2 .

It is a cyclic number.

It is not a de Polignac number, because 226245137 - 22 = 226245133 is a prime.

It is a super-2 number, since 2×2262451372 = 102373724032297538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226245133) 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, 17012 + ... + 27237.

It is an arithmetic number, because the mean of its divisors is an integer number (56573625).

Almost surely, 2226245137 is an apocalyptic number.

It is an amenable number.

226245137 is a deficient number, since it is larger than the sum of its proper divisors (49363).

226245137 is an equidigital number, since it uses as much as digits as its factorization.

226245137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49362.

The product of its digits is 20160, while the sum is 32.

The square root of 226245137 is about 15041.4473040329. The cubic root of 226245137 is about 609.3400881055.

Adding to 226245137 its reverse (731542622), we get a palindrome (957787759).

The spelling of 226245137 in words is "two hundred twenty-six million, two hundred forty-five thousand, one hundred thirty-seven".

Divisors: 1 5113 44249 226245137