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206898830 = 2520689883
BaseRepresentation
bin11000101010100…
…00011010001110
3112102022112211122
430111100122032
5410431230310
632310320542
75061416405
oct1425203216
9472275748
10206898830
11a6875176
1259359152
1333b31458
141d69a63c
151326d555
hexc55068e

206898830 has 8 divisors (see below), whose sum is σ = 372417912. Its totient is φ = 82759528.

The previous prime is 206898827. The next prime is 206898871. The reversal of 206898830 is 38898602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10344932 + ... + 10344951.

It is an arithmetic number, because the mean of its divisors is an integer number (46552239).

Almost surely, 2206898830 is an apocalyptic number.

206898830 is a deficient number, since it is larger than the sum of its proper divisors (165519082).

206898830 is a wasteful number, since it uses less digits than its factorization.

206898830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20689890.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 206898830 is about 14383.9782396943. The cubic root of 206898830 is about 591.4517824001.

The spelling of 206898830 in words is "two hundred six million, eight hundred ninety-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 20689883 41379766 103449415 206898830