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201230210990 = 25239261732173
BaseRepresentation
bin1011101101101001000…
…0010101011110101110
3201020102002010212201102
42323122100111132232
511244104413222430
6232235513443102
720352446366654
oct2733220253656
9636362125642
10201230210990
11783832319a6
1232bbb710492
1315c8c160683
149a4d636dd4
15537b47b345
hex2eda4157ae

201230210990 has 32 divisors (see below), whose sum is σ = 363880218240. Its totient is φ = 80122178304.

The previous prime is 201230210989. The next prime is 201230211001. The reversal of 201230210990 is 99012032102.

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 15 ways as a sum of consecutive naturals, for example, 6238544 + ... + 6270716.

It is an arithmetic number, because the mean of its divisors is an integer number (11371256820).

Almost surely, 2201230210990 is an apocalyptic number.

201230210990 is a deficient number, since it is larger than the sum of its proper divisors (162650007250).

201230210990 is a wasteful number, since it uses less digits than its factorization.

201230210990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35036.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 201230210990 in words is "two hundred one billion, two hundred thirty million, two hundred ten thousand, nine hundred ninety".

Divisors: 1 2 5 10 239 478 1195 2390 2617 5234 13085 26170 32173 64346 160865 321730 625463 1250926 3127315 6254630 7689347 15378694 38446735 76893470 84196741 168393482 420983705 841967410 20123021099 40246042198 100615105495 201230210990