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206106460 = 22571579377
BaseRepresentation
bin11000100100011…
…10111101011100
3112100211021220121
430102032331130
5410230401320
632241324324
75051606320
oct1422167534
9470737817
10206106460
11a638391a
12590366a4
13339148b1
141d531980
15131638aa
hexc48ef5c

206106460 has 48 divisors (see below), whose sum is σ = 497859264. Its totient is φ = 70207488.

The previous prime is 206106449. The next prime is 206106493. The reversal of 206106460 is 64601602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17292 + ... + 26668.

It is an arithmetic number, because the mean of its divisors is an integer number (10372068).

Almost surely, 2206106460 is an apocalyptic number.

206106460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206106460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248929632).

206106460 is an abundant number, since it is smaller than the sum of its proper divisors (291752804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206106460 is a wasteful number, since it uses less digits than its factorization.

206106460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550 (or 9548 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206106460 is about 14356.4083252045. The cubic root of 206106460 is about 590.6957797467.

The spelling of 206106460 in words is "two hundred six million, one hundred six thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 157 314 628 785 1099 1570 2198 3140 4396 5495 9377 10990 18754 21980 37508 46885 65639 93770 131278 187540 262556 328195 656390 1312780 1472189 2944378 5888756 7360945 10305323 14721890 20610646 29443780 41221292 51526615 103053230 206106460