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228079222 = 273332477
BaseRepresentation
bin11011001100000…
…11011001110110
3120220011121212121
431212003121312
5431342013342
634344310154
75436433000
oct1546033166
9526147777
10228079222
11107821328
126447235a
1338338c27
1422411370
1515054067
hexd983676

228079222 has 16 divisors (see below), whose sum is σ = 398973600. Its totient is φ = 97747944.

The previous prime is 228079219. The next prime is 228079237. The reversal of 228079222 is 222970822.

It is a super-3 number, since 3×2280792223 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165553 + ... + 166924.

It is an arithmetic number, because the mean of its divisors is an integer number (24935850).

Almost surely, 2228079222 is an apocalyptic number.

228079222 is a deficient number, since it is larger than the sum of its proper divisors (170894378).

228079222 is an equidigital number, since it uses as much as digits as its factorization.

228079222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332500 (or 332486 counting only the distinct ones).

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

The square root of 228079222 is about 15102.2919452645. The cubic root of 228079222 is about 610.9822230027.

The spelling of 228079222 in words is "two hundred twenty-eight million, seventy-nine thousand, two hundred twenty-two".

Divisors: 1 2 7 14 49 98 343 686 332477 664954 2327339 4654678 16291373 32582746 114039611 228079222