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206244028 = 221972271153
BaseRepresentation
bin11000100101100…
…00100010111100
3112101002021121201
430102300202330
5410244302103
632244305244
75053021354
oct1422604274
9471067551
10206244028
11a6468211
12590a2224
13339623b3
141d569b64
151318e51d
hexc4b08bc

206244028 has 24 divisors (see below), whose sum is σ = 364673232. Its totient is φ = 102057984.

The previous prime is 206244001. The next prime is 206244029. The reversal of 206244028 is 820442602.

It is a junction number, because it is equal to n+sod(n) for n = 206243987 and 206244005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206244029) 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, 178300 + ... + 179452.

It is an arithmetic number, because the mean of its divisors is an integer number (15194718).

Almost surely, 2206244028 is an apocalyptic number.

It is an amenable number.

206244028 is a deficient number, since it is larger than the sum of its proper divisors (158429204).

206244028 is a wasteful number, since it uses less digits than its factorization.

206244028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 206244028 is about 14361.1986964877. The cubic root of 206244028 is about 590.8271726269.

The spelling of 206244028 in words is "two hundred six million, two hundred forty-four thousand, twenty-eight".

Divisors: 1 2 4 197 227 394 454 788 908 1153 2306 4612 44719 89438 178876 227141 261731 454282 523462 908564 1046924 51561007 103122014 206244028