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2980530 = 233571983
BaseRepresentation
bin1011010111101010110010
312121102112000
423113222302
51230334110
6143514430
734222410
oct13275262
95542460
102980530
111756353
12bb8a16
13804837
145782b0
153dd1c0
hex2d7ab2

2980530 has 128 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 637632.

The previous prime is 2980513. The next prime is 2980531. The reversal of 2980530 is 350892.

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

It is a junction number, because it is equal to n+sod(n) for n = 2980494 and 2980503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2980531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35869 + ... + 35951.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

22980530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2980530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4838400).

2980530 is an abundant number, since it is smaller than the sum of its proper divisors (6696270).

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

2980530 is a wasteful number, since it uses less digits than its factorization.

2980530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 119 counting only the distinct ones).

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

The square root of 2980530 is about 1726.4211537166. The cubic root of 2980530 is about 143.9122729551.

The spelling of 2980530 in words is "two million, nine hundred eighty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 35 38 42 45 54 57 63 70 83 90 95 105 114 126 133 135 166 171 189 190 210 249 266 270 285 315 342 378 399 415 498 513 570 581 630 665 747 798 830 855 945 1026 1162 1197 1245 1330 1494 1577 1710 1743 1890 1995 2241 2394 2490 2565 2905 3154 3486 3591 3735 3990 4482 4731 5130 5229 5810 5985 7182 7470 7885 8715 9462 10458 11039 11205 11970 14193 15687 15770 17430 17955 22078 22410 23655 26145 28386 31374 33117 35910 42579 47310 52290 55195 66234 70965 78435 85158 99351 110390 141930 156870 165585 198702 212895 298053 331170 425790 496755 596106 993510 1490265 2980530