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200308920 = 23357238463
BaseRepresentation
bin10111111000001…
…11100010111000
3111221220202011220
423330013202320
5402234341140
631513152040
74651412010
oct1374074270
9457822156
10200308920
11a3084069
12570bb620
1332664ab6
141c862c40
15128babd0
hexbf078b8

200308920 has 64 divisors (see below), whose sum is σ = 686776320. Its totient is φ = 45784704.

The previous prime is 200308919. The next prime is 200308931. The reversal of 200308920 is 29803002.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 118392 + ... + 120071.

It is an arithmetic number, because the mean of its divisors is an integer number (10730880).

Almost surely, 2200308920 is an apocalyptic number.

200308920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200308920 is an abundant number, since it is smaller than the sum of its proper divisors (486467400).

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

200308920 is a wasteful number, since it uses less digits than its factorization.

200308920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238484 (or 238480 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 200308920 is about 14153.0533808080. The cubic root of 200308920 is about 585.1044886045.

The spelling of 200308920 in words is "two hundred million, three hundred eight thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 238463 476926 715389 953852 1192315 1430778 1669241 1907704 2384630 2861556 3338482 3576945 4769260 5007723 5723112 6676964 7153890 8346205 9538520 10015446 13353928 14307780 16692410 20030892 25038615 28615560 33384820 40061784 50077230 66769640 100154460 200308920