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206225151 = 3116249247
BaseRepresentation
bin11000100101010…
…11111011111111
3112101001022201120
430102223323333
5410243201101
632244042023
75052612336
oct1422537377
9471038646
10206225151
11a6455010
1259093313
1333956922
141d562d1d
1513188b36
hexc4abeff

206225151 has 8 divisors (see below), whose sum is σ = 299963904. Its totient is φ = 124984920.

The previous prime is 206225137. The next prime is 206225167. The reversal of 206225151 is 151522602.

It is a happy number.

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

It is not a de Polignac number, because 206225151 - 27 = 206225023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206225951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124591 + ... + 3124656.

It is an arithmetic number, because the mean of its divisors is an integer number (37495488).

Almost surely, 2206225151 is an apocalyptic number.

206225151 is a deficient number, since it is larger than the sum of its proper divisors (93738753).

206225151 is a wasteful number, since it uses less digits than its factorization.

206225151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249261.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 206225151 is about 14360.5414591512. The cubic root of 206225151 is about 590.8091464325.

Adding to 206225151 its reverse (151522602), we get a palindrome (357747753).

The spelling of 206225151 in words is "two hundred six million, two hundred twenty-five thousand, one hundred fifty-one".

Divisors: 1 3 11 33 6249247 18747741 68741717 206225151