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226213201 = 312172481
BaseRepresentation
bin11010111101110…
…11110101010001
3120202122211011201
431132323311101
5430402310301
634240311201
75414531464
oct1536736521
9522584151
10226213201
11106767365
1263912501
1337b34786
14220872db
1514cd6201
hexd7bbd51

226213201 has 4 divisors (see below), whose sum is σ = 226288804. Its totient is φ = 226137600.

The previous prime is 226213189. The next prime is 226213213. The reversal of 226213201 is 102312622.

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

It is an interprime number because it is at equal distance from previous prime (226213189) and next prime (226213213).

It can be written as a sum of positive squares in 2 ways, for example, as 24601600 + 201611601 = 4960^2 + 14199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-226213201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226213241) 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, 33120 + ... + 39361.

It is an arithmetic number, because the mean of its divisors is an integer number (56572201).

Almost surely, 2226213201 is an apocalyptic number.

It is an amenable number.

226213201 is a deficient number, since it is larger than the sum of its proper divisors (75603).

226213201 is an equidigital number, since it uses as much as digits as its factorization.

226213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75602.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 226213201 is about 15040.3856665978. The cubic root of 226213201 is about 609.3114159596.

Adding to 226213201 its reverse (102312622), we get a palindrome (328525823).

The spelling of 226213201 in words is "two hundred twenty-six million, two hundred thirteen thousand, two hundred one".

Divisors: 1 3121 72481 226213201