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25024980 = 22351133691
BaseRepresentation
bin101111101110…
…1100111010100
31202002101211010
41133131213110
522401244410
62252212220
7422465061
oct137354724
952071733
1025024980
1113142702
12846a070
1352526a6
143475c68
1522e4c20
hex17dd9d4

25024980 has 48 divisors (see below), whose sum is σ = 70709184. Its totient is φ = 6612480.

The previous prime is 25024963. The next prime is 25024981. The reversal of 25024980 is 8942052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25024981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4935 + ... + 8625.

It is an arithmetic number, because the mean of its divisors is an integer number (1473108).

Almost surely, 225024980 is an apocalyptic number.

25024980 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 25024980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35354592).

25024980 is an abundant number, since it is smaller than the sum of its proper divisors (45684204).

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

25024980 is a wasteful number, since it uses less digits than its factorization.

25024980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816 (or 3814 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 25024980 is about 5002.4973763112. The cubic root of 25024980 is about 292.4991306863.

The spelling of 25024980 in words is "twenty-five million, twenty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 113 226 339 452 565 678 1130 1356 1695 2260 3390 3691 6780 7382 11073 14764 18455 22146 36910 44292 55365 73820 110730 221460 417083 834166 1251249 1668332 2085415 2502498 4170830 5004996 6256245 8341660 12512490 25024980