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25482980 = 2251274149
BaseRepresentation
bin110000100110…
…1011011100100
31202221200002002
41201031123210
523010423410
62310104432
7426413255
oct141153344
952850062
1025482980
1113425816
12864b118
135382cb3
143554b2c
1523857a5
hex184d6e4

25482980 has 12 divisors (see below), whose sum is σ = 53514300. Its totient is φ = 10193184.

The previous prime is 25482979. The next prime is 25482997. The reversal of 25482980 is 8928452.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 16434916 = 3008^2 + 4054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637055 + ... + 637094.

It is an arithmetic number, because the mean of its divisors is an integer number (4459525).

Almost surely, 225482980 is an apocalyptic number.

25482980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25482980 is an abundant number, since it is smaller than the sum of its proper divisors (28031320).

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

25482980 is a wasteful number, since it uses less digits than its factorization.

25482980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274158 (or 1274156 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 25482980 is about 5048.0669567667. The cubic root of 25482980 is about 294.2727658146.

It can be divided in two parts, 25482 and 980, that added together give a palindrome (26462).

The spelling of 25482980 in words is "twenty-five million, four hundred eighty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1274149 2548298 5096596 6370745 12741490 25482980