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228204097 = 1138775351
BaseRepresentation
bin11011001101000…
…01111001000001
3120220101222011121
431212201321001
5431410012342
634351112241
75440463032
oct1546417101
9526358147
10228204097
111078a7130
1264512681
1338380a14
1422444a89
151507b067
hexd9a1e41

228204097 has 8 divisors (see below), whose sum is σ = 249060672. Its totient is φ = 207366000.

The previous prime is 228204089. The next prime is 228204121. The reversal of 228204097 is 790402822.

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

It is a cyclic number.

It is not a de Polignac number, because 228204097 - 23 = 228204089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228204007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39972 + ... + 45322.

It is an arithmetic number, because the mean of its divisors is an integer number (31132584).

Almost surely, 2228204097 is an apocalyptic number.

It is an amenable number.

228204097 is a deficient number, since it is larger than the sum of its proper divisors (20856575).

228204097 is a wasteful number, since it uses less digits than its factorization.

228204097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 228204097 is about 15106.4256857802. The cubic root of 228204097 is about 611.0937083664.

The spelling of 228204097 in words is "two hundred twenty-eight million, two hundred four thousand, ninety-seven".

Divisors: 1 11 3877 5351 42647 58861 20745827 228204097