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228670101 = 33113720809
BaseRepresentation
bin11011010000100…
…11101010010101
3120221021122102000
431220103222111
5432014420401
634405105513
75444443452
oct1550235225
9527248360
10228670101
11108095260
12646b8299
13384b4b6a
1422526829
151511e186
hexda13a95

228670101 has 32 divisors (see below), whose sum is σ = 379574400. Its totient is φ = 134835840.

The previous prime is 228670097. The next prime is 228670121. The reversal of 228670101 is 101076822.

228670101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228670101 - 22 = 228670097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228670121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585 + ... + 21393.

It is an arithmetic number, because the mean of its divisors is an integer number (11861700).

Almost surely, 2228670101 is an apocalyptic number.

It is an amenable number.

228670101 is a deficient number, since it is larger than the sum of its proper divisors (150904299).

228670101 is a wasteful number, since it uses less digits than its factorization.

228670101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20866 (or 20860 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 228670101 is about 15121.8418521025. The cubic root of 228670101 is about 611.5093866945.

The spelling of 228670101 in words is "two hundred twenty-eight million, six hundred seventy thousand, one hundred one".

Divisors: 1 3 9 11 27 33 37 99 111 297 333 407 999 1221 3663 10989 20809 62427 187281 228899 561843 686697 769933 2060091 2309799 6180273 6929397 8469263 20788191 25407789 76223367 228670101