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200386830 = 23576115643
BaseRepresentation
bin10111111000110…
…10100100001110
3111222001201001110
423330122210032
5402244334310
631514552450
74652155110
oct1374324416
9458051043
10200386830
11a3127656
1257138726
13326913b7
141c8833b0
15128d3d20
hexbf1a90e

200386830 has 64 divisors (see below), whose sum is σ = 558678528. Its totient is φ = 45048960.

The previous prime is 200386829. The next prime is 200386841. The reversal of 200386830 is 38683002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4989 + ... + 20631.

It is an arithmetic number, because the mean of its divisors is an integer number (8729352).

Almost surely, 2200386830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200386830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279339264).

200386830 is an abundant number, since it is smaller than the sum of its proper divisors (358291698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200386830 is a wasteful number, since it uses less digits than its factorization.

200386830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15721.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 200386830 is about 14155.8055228235. The cubic root of 200386830 is about 585.1803374181.

The spelling of 200386830 in words is "two hundred million, three hundred eighty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 61 70 105 122 183 210 305 366 427 610 854 915 1281 1830 2135 2562 4270 6405 12810 15643 31286 46929 78215 93858 109501 156430 219002 234645 328503 469290 547505 657006 954223 1095010 1642515 1908446 2862669 3285030 4771115 5725338 6679561 9542230 13359122 14313345 20038683 28626690 33397805 40077366 66795610 100193415 200386830