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2530980 = 2233543109
BaseRepresentation
bin1001101001111010100100
311202120212000
421221322210
51121442410
6130125300
730340644
oct11517244
94676760
102530980
111479621
12a20830
136a802a
1449c524
1534edc0
hex269ea4

2530980 has 96 divisors (see below), whose sum is σ = 8131200. Its totient is φ = 653184.

The previous prime is 2530973. The next prime is 2530981. The reversal of 2530980 is 890352.

2530980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2530981) 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 31 ways as a sum of consecutive naturals, for example, 23166 + ... + 23274.

It is an arithmetic number, because the mean of its divisors is an integer number (84700).

22530980 is an apocalyptic number.

2530980 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 2530980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4065600).

2530980 is an abundant number, since it is smaller than the sum of its proper divisors (5600220).

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

2530980 is a wasteful number, since it uses less digits than its factorization.

2530980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2530980 is about 1590.9054025931. The cubic root of 2530980 is about 136.2791986352.

The spelling of 2530980 in words is "two million, five hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 43 45 54 60 86 90 108 109 129 135 172 180 215 218 258 270 327 387 430 436 516 540 545 645 654 774 860 981 1090 1161 1290 1308 1548 1635 1935 1962 2180 2322 2580 2943 3270 3870 3924 4644 4687 4905 5805 5886 6540 7740 9374 9810 11610 11772 14061 14715 18748 19620 23220 23435 28122 29430 42183 46870 56244 58860 70305 84366 93740 126549 140610 168732 210915 253098 281220 421830 506196 632745 843660 1265490 2530980