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2000180 = 2257213157
BaseRepresentation
bin111101000010100110100
310202121201202
413220110310
51003001210
6110512032
723000300
oct7502464
93677652
102000180
111146846
12805618
13550550
143a0d00
152979a5
hex1e8534

2000180 has 72 divisors (see below), whose sum is σ = 5295528. Its totient is φ = 628992.

The previous prime is 2000177. The next prime is 2000209. The reversal of 2000180 is 810002.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 1999396 = 28^2 + 1414^2 .

2000180 is a modest number, since divided by 180 gives 20 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12662 + ... + 12818.

It is an arithmetic number, because the mean of its divisors is an integer number (73549).

22000180 is an apocalyptic number.

2000180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2000180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2647764).

2000180 is an abundant number, since it is smaller than the sum of its proper divisors (3295348).

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

2000180 is a wasteful number, since it uses less digits than its factorization.

2000180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2000180 is about 1414.2772005516. The cubic root of 2000180 is about 125.9958846392.

Adding to 2000180 its reverse (810002), we get a palindrome (2810182).

It can be divided in two parts, 2000 and 180, that multiplied together give a square (360000 = 6002).

The spelling of 2000180 in words is "two million, one hundred eighty", and thus it is an aban number.

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 157 182 196 245 260 314 364 455 490 628 637 785 910 980 1099 1274 1570 1820 2041 2198 2548 3140 3185 4082 4396 5495 6370 7693 8164 10205 10990 12740 14287 15386 20410 21980 28574 30772 38465 40820 57148 71435 76930 100009 142870 153860 200018 285740 400036 500045 1000090 2000180