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227422057 = 829274333
BaseRepresentation
bin11011000111000…
…10111101101001
3120211221020102011
431203202331221
5431210001212
634322235521
75431025032
oct1543427551
9524836364
10227422057
11107412615
12641b5ba1
1338168a85
14222bda89
1514e744a7
hexd8e2f69

227422057 has 4 divisors (see below), whose sum is σ = 227697220. Its totient is φ = 227146896.

The previous prime is 227422037. The next prime is 227422061. The reversal of 227422057 is 750224722.

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 186704896 + 40717161 = 13664^2 + 6381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-227422057 is a prime.

It is a super-2 number, since 2×2274220572 = 103441584020222498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227422037) 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, 136338 + ... + 137995.

It is an arithmetic number, because the mean of its divisors is an integer number (56924305).

Almost surely, 2227422057 is an apocalyptic number.

It is an amenable number.

227422057 is a deficient number, since it is larger than the sum of its proper divisors (275163).

227422057 is an equidigital number, since it uses as much as digits as its factorization.

227422057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275162.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 227422057 is about 15080.5191223645. The cubic root of 227422057 is about 610.3948505140.

Adding to 227422057 its reverse (750224722), we get a palindrome (977646779).

The spelling of 227422057 in words is "two hundred twenty-seven million, four hundred twenty-two thousand, fifty-seven".

Divisors: 1 829 274333 227422057