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206106461 = 1149937549
BaseRepresentation
bin11000100100011…
…10111101011101
3112100211021220122
430102032331131
5410230401321
632241324325
75051606321
oct1422167535
9470737818
10206106461
11a6383920
12590366a5
13339148b2
141d531981
15131638ab
hexc48ef5d

206106461 has 8 divisors (see below), whose sum is σ = 225300000. Its totient is φ = 186989040.

The previous prime is 206106449. The next prime is 206106493. The reversal of 206106461 is 164601602.

It is a happy number.

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 206106461 - 210 = 206105437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206106461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206109461) 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, 13286 + ... + 24263.

It is an arithmetic number, because the mean of its divisors is an integer number (28162500).

Almost surely, 2206106461 is an apocalyptic number.

It is an amenable number.

206106461 is a deficient number, since it is larger than the sum of its proper divisors (19193539).

206106461 is a wasteful number, since it uses less digits than its factorization.

206106461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38059.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 206106461 is about 14356.4083600321. The cubic root of 206106461 is about 590.6957807020.

The spelling of 206106461 in words is "two hundred six million, one hundred six thousand, four hundred sixty-one".

Divisors: 1 11 499 5489 37549 413039 18736951 206106461