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206947074 = 23291816571
BaseRepresentation
bin11000101010111…
…00001100000010
3112102102000000110
430111130030002
5410434301244
632311332150
75062010145
oct1425341402
9472360013
10206947074
11a68a8444
1259381056
1333b4a3b9
141d6b005c
151327c9b9
hexc55c302

206947074 has 32 divisors (see below), whose sum is σ = 430597440. Its totient is φ = 66225600.

The previous prime is 206947021. The next prime is 206947079. The reversal of 206947074 is 470749602.

It is a super-2 number, since 2×2069470742 = 85654182874322952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206947079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28209 + ... + 34779.

It is an arithmetic number, because the mean of its divisors is an integer number (13456170).

Almost surely, 2206947074 is an apocalyptic number.

206947074 is an abundant number, since it is smaller than the sum of its proper divisors (223650366).

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

206947074 is a wasteful number, since it uses less digits than its factorization.

206947074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 206947074 is about 14385.6551467078. The cubic root of 206947074 is about 591.4977497653.

The spelling of 206947074 in words is "two hundred six million, nine hundred forty-seven thousand, seventy-four".

Divisors: 1 2 3 6 29 58 87 174 181 362 543 1086 5249 6571 10498 13142 15747 19713 31494 39426 190559 381118 571677 1143354 1189351 2378702 3568053 7136106 34491179 68982358 103473537 206947074