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206560030 = 25176119919
BaseRepresentation
bin11000100111111…
…01101100011110
3112101200100002111
430103331230132
5410334410110
632255144234
75055505555
oct1423755436
9471610074
10206560030
11a6663676
125921507a
1333a43191
141d60cd9c
1513202e8a
hexc4fdb1e

206560030 has 32 divisors (see below), whose sum is σ = 400152960. Its totient is φ = 76485120.

The previous prime is 206560021. The next prime is 206560031. The reversal of 206560030 is 30065602.

It is a junction number, because it is equal to n+sod(n) for n = 206559983 and 206560010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206560031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411 + ... + 20329.

It is an arithmetic number, because the mean of its divisors is an integer number (12504780).

Almost surely, 2206560030 is an apocalyptic number.

206560030 is a deficient number, since it is larger than the sum of its proper divisors (193592930).

206560030 is a wasteful number, since it uses less digits than its factorization.

206560030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20004.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 206560030 is about 14372.1964222592. The cubic root of 206560030 is about 591.1287689081.

The spelling of 206560030 in words is "two hundred six million, five hundred sixty thousand, thirty".

Divisors: 1 2 5 10 17 34 61 85 122 170 305 610 1037 2074 5185 10370 19919 39838 99595 199190 338623 677246 1215059 1693115 2430118 3386230 6075295 12150590 20656003 41312006 103280015 206560030