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228910201 = 1354732191
BaseRepresentation
bin11011010010011…
…10010001111001
3120221201211202121
431221032101321
5432100111301
634414201241
75446463452
oct1551162171
9527654677
10228910201
11108239693
12647b3221
133856a230
142258a129
151516a3a1
hexda4e479

228910201 has 8 divisors (see below), whose sum is σ = 246977024. Its totient is φ = 210908880.

The previous prime is 228910189. The next prime is 228910211. The reversal of 228910201 is 102019822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228910201 - 221 = 226813049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228910211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8985 + ... + 23206.

It is an arithmetic number, because the mean of its divisors is an integer number (30872128).

Almost surely, 2228910201 is an apocalyptic number.

It is an amenable number.

228910201 is a deficient number, since it is larger than the sum of its proper divisors (18066823).

228910201 is a wasteful number, since it uses less digits than its factorization.

228910201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32751.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 228910201 is about 15129.7786170188. The cubic root of 228910201 is about 611.7233369014.

The spelling of 228910201 in words is "two hundred twenty-eight million, nine hundred ten thousand, two hundred one".

Divisors: 1 13 547 7111 32191 418483 17608477 228910201