Search a number
-
+
2505140 = 2251159193
BaseRepresentation
bin1001100011100110110100
311201021101222
421203212310
51120131030
6125405512
730202421
oct11434664
94637358
102505140
111461170
12a09898
13699341
14492d48
153473e5
hex2639b4

2505140 has 48 divisors (see below), whose sum is σ = 5866560. Its totient is φ = 890880.

The previous prime is 2505133. The next prime is 2505143. The reversal of 2505140 is 415052.

2505140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12884 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (122220).

22505140 is an apocalyptic number.

2505140 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 2505140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2933280).

2505140 is an abundant number, since it is smaller than the sum of its proper divisors (3361420).

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

2505140 is a wasteful number, since it uses less digits than its factorization.

2505140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2505140 is about 1582.7634061982. The cubic root of 2505140 is about 135.8138312005.

The spelling of 2505140 in words is "two million, five hundred five thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 59 110 118 193 220 236 295 386 590 649 772 965 1180 1298 1930 2123 2596 3245 3860 4246 6490 8492 10615 11387 12980 21230 22774 42460 45548 56935 113870 125257 227740 250514 501028 626285 1252570 2505140