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200281931 = 5916720327
BaseRepresentation
bin10111111000000…
…00111101001011
3111221212101011022
423330000331023
5402233010211
631512423055
74651240223
oct1374007513
9457771138
10200281931
11a3065863
12570a7a8b
1332655725
141c857083
15128b2bdb
hexbf00f4b

200281931 has 8 divisors (see below), whose sum is σ = 204906240. Its totient is φ = 195698728.

The previous prime is 200281901. The next prime is 200281933. The reversal of 200281931 is 139182002.

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

It is a cyclic number.

It is not a de Polignac number, because 200281931 - 214 = 200265547 is a prime.

It is a super-2 number, since 2×2002819312 = 80225703770177522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200281931.

It is not an unprimeable number, because it can be changed into a prime (200281933) 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, 311 + ... + 20016.

It is an arithmetic number, because the mean of its divisors is an integer number (25613280).

Almost surely, 2200281931 is an apocalyptic number.

200281931 is a deficient number, since it is larger than the sum of its proper divisors (4624309).

200281931 is a wasteful number, since it uses less digits than its factorization.

200281931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20553.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 200281931 is about 14152.0998795232. The cubic root of 200281931 is about 585.0782090387.

The spelling of 200281931 in words is "two hundred million, two hundred eighty-one thousand, nine hundred thirty-one".

Divisors: 1 59 167 9853 20327 1199293 3394609 200281931