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206451076 = 22132305401
BaseRepresentation
bin11000100111000…
…11000110000100
3112101110210122011
430103203012010
5410322413301
632252544004
75054543116
oct1423430604
9471423564
10206451076
11a6599827
1259182004
1333a05700
141d5c13b6
15131d0a51
hexc4e3184

206451076 has 18 divisors (see below), whose sum is σ = 391219962. Its totient is φ = 95284800.

The previous prime is 206451071. The next prime is 206451097. The reversal of 206451076 is 670154602.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 24740676 + 181710400 = 4974^2 + 13480^2 .

It is not an unprimeable number, because it can be changed into a prime (206451071) 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 5 ways as a sum of consecutive naturals, for example, 152025 + ... + 153376.

Almost surely, 2206451076 is an apocalyptic number.

206451076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

206451076 is a deficient number, since it is larger than the sum of its proper divisors (184768886).

206451076 is a wasteful number, since it uses less digits than its factorization.

206451076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305431 (or 305416 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 206451076 is about 14368.4054786883. The cubic root of 206451076 is about 591.0248166071.

The spelling of 206451076 in words is "two hundred six million, four hundred fifty-one thousand, seventy-six".

Divisors: 1 2 4 13 26 52 169 338 676 305401 610802 1221604 3970213 7940426 15880852 51612769 103225538 206451076