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2580030 = 2325109263
BaseRepresentation
bin1001110101111000111110
311212002010200
421311320332
51130030110
6131144330
730633645
oct11657076
94762120
102580030
111502462
12a450a6
136c445b
144b235c
1535e6c0
hex275e3e

2580030 has 48 divisors (see below), whose sum is σ = 6795360. Its totient is φ = 679104.

The previous prime is 2579999. The next prime is 2580031. The reversal of 2580030 is 300852.

It is a super-3 number, since 3×25800303 = 51522333248898081000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2579985 and 2580012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9679 + ... + 9941.

It is an arithmetic number, because the mean of its divisors is an integer number (141570).

22580030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2580030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3397680).

2580030 is an abundant number, since it is smaller than the sum of its proper divisors (4215330).

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

2580030 is a wasteful number, since it uses less digits than its factorization.

2580030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2580030 is about 1606.2471789858. The cubic root of 2580030 is about 137.1539286077.

Adding to 2580030 its reverse (300852), we get a palindrome (2880882).

The spelling of 2580030 in words is "two million, five hundred eighty thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 109 218 263 327 526 545 654 789 981 1090 1315 1578 1635 1962 2367 2630 3270 3945 4734 4905 7890 9810 11835 23670 28667 57334 86001 143335 172002 258003 286670 430005 516006 860010 1290015 2580030