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200250990 = 23251727699
BaseRepresentation
bin10111110111110…
…01011001101110
3111221210210201100
423323321121232
5402231012430
631512023530
74651051062
oct1373713156
9457723640
10200250990
11a3044595
1257091ba6
1332644614
141c849aa2
15128a8960
hexbef966e

200250990 has 72 divisors (see below), whose sum is σ = 553152600. Its totient is φ = 50252544.

The previous prime is 200250901. The next prime is 200251033. The reversal of 200250990 is 99052002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22161 + ... + 29859.

It is an arithmetic number, because the mean of its divisors is an integer number (7682675).

Almost surely, 2200250990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200250990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276576300).

200250990 is an abundant number, since it is smaller than the sum of its proper divisors (352901610).

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

200250990 is a wasteful number, since it uses less digits than its factorization.

200250990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746 (or 7726 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 200250990 is about 14151.0066779717. The cubic root of 200250990 is about 585.0480784505.

The spelling of 200250990 in words is "two hundred million, two hundred fifty thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 289 306 510 578 765 867 1445 1530 1734 2601 2890 4335 5202 7699 8670 13005 15398 23097 26010 38495 46194 69291 76990 115485 130883 138582 230970 261766 346455 392649 654415 692910 785298 1177947 1308830 1963245 2225011 2355894 3926490 4450022 5889735 6675033 11125055 11779470 13350066 20025099 22250110 33375165 40050198 66750330 100125495 200250990