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206939382 = 23134164709
BaseRepresentation
bin11000101010110…
…10010011110110
3112102101121110120
430111122103312
5410434030012
632311232410
75061645546
oct1425322366
9472347416
10206939382
11a68a2691
1259378706
1333b46a50
141d6ab326
151327a58c
hexc55a4f6

206939382 has 32 divisors (see below), whose sum is σ = 456593760. Its totient is φ = 62119680.

The previous prime is 206939357. The next prime is 206939407. The reversal of 206939382 is 283939602.

It is an interprime number because it is at equal distance from previous prime (206939357) and next prime (206939407).

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, 29157 + ... + 35552.

It is an arithmetic number, because the mean of its divisors is an integer number (14268555).

Almost surely, 2206939382 is an apocalyptic number.

206939382 is an abundant number, since it is smaller than the sum of its proper divisors (249654378).

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

206939382 is a wasteful number, since it uses less digits than its factorization.

206939382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64768.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 206939382 is about 14385.3877945643. The cubic root of 206939382 is about 591.4904212296.

The spelling of 206939382 in words is "two hundred six million, nine hundred thirty-nine thousand, three hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 41 78 82 123 246 533 1066 1599 3198 64709 129418 194127 388254 841217 1682434 2523651 2653069 5047302 5306138 7959207 15918414 34489897 68979794 103469691 206939382