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206051419 = 7485819
BaseRepresentation
bin11000100100000…
…01100001011011
3112100201111102001
430102001201123
5410222121134
632240221431
75051260000
oct1422014133
9470644361
10206051419
11a6346532
125900a877
13338c5822
141d5198a7
1513152414
hexc48185b

206051419 has 10 divisors (see below), whose sum is σ = 240381820. Its totient is φ = 176613444.

The previous prime is 206051393. The next prime is 206051449. The reversal of 206051419 is 914150602.

It is not a de Polignac number, because 206051419 - 215 = 206018651 is a prime.

It is a super-2 number, since 2×2060514192 = 84914374543827122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206051449) 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 9 ways as a sum of consecutive naturals, for example, 40509 + ... + 45310.

It is an arithmetic number, because the mean of its divisors is an integer number (24038182).

Almost surely, 2206051419 is an apocalyptic number.

206051419 is a deficient number, since it is larger than the sum of its proper divisors (34330401).

206051419 is an frugal number, since it uses more digits than its factorization.

206051419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85847 (or 85826 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 206051419 is about 14354.4912483863. The cubic root of 206051419 is about 590.6431930381.

The spelling of 206051419 in words is "two hundred six million, fifty-one thousand, four hundred nineteen".

Divisors: 1 7 49 343 2401 85819 600733 4205131 29435917 206051419