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206904046 = 2437332957
BaseRepresentation
bin11000101010100…
…01101011101110
3112102022210222211
430111101223232
5410431412141
632310401034
75061440536
oct1425215356
9472283884
10206904046
11a6879088
125936017a
1333b3393b
141d69c4c6
151326ed81
hexc551aee

206904046 has 16 divisors (see below), whose sum is σ = 321933744. Its totient is φ = 99658944.

The previous prime is 206904041. The next prime is 206904077. The reversal of 206904046 is 640409602.

It is a junction number, because it is equal to n+sod(n) for n = 206903999 and 206904017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206904041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10201 + ... + 22756.

It is an arithmetic number, because the mean of its divisors is an integer number (20120859).

Almost surely, 2206904046 is an apocalyptic number.

206904046 is a deficient number, since it is larger than the sum of its proper divisors (115029698).

206904046 is a wasteful number, since it uses less digits than its factorization.

206904046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33075.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 206904046 is about 14384.1595513954. The cubic root of 206904046 is about 591.4567526015.

The spelling of 206904046 in words is "two hundred six million, nine hundred four thousand, forty-six".

Divisors: 1 2 43 73 86 146 3139 6278 32957 65914 1417151 2405861 2834302 4811722 103452023 206904046