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206868486 = 231123136277
BaseRepresentation
bin11000101010010…
…01000000000110
3112102021000012210
430111021000012
5410424242421
632305524250
75061232056
oct1425110006
9472230183
10206868486
11a68543a0
1259343686
1333b206b6
141d68d566
1513264576
hexc549006

206868486 has 32 divisors (see below), whose sum is σ = 470976768. Its totient is φ = 59961440.

The previous prime is 206868469. The next prime is 206868533. The reversal of 206868486 is 684868602.

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, 66621 + ... + 69656.

It is an arithmetic number, because the mean of its divisors is an integer number (14718024).

Almost surely, 2206868486 is an apocalyptic number.

206868486 is an abundant number, since it is smaller than the sum of its proper divisors (264108282).

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

206868486 is a wasteful number, since it uses less digits than its factorization.

206868486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136316.

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 206868486 is about 14382.9234163295. The cubic root of 206868486 is about 591.4228666730.

The spelling of 206868486 in words is "two hundred six million, eight hundred sixty-eight thousand, four hundred eighty-six".

Divisors: 1 2 3 6 11 22 23 33 46 66 69 138 253 506 759 1518 136277 272554 408831 817662 1499047 2998094 3134371 4497141 6268742 8994282 9403113 18806226 34478081 68956162 103434243 206868486