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4780980 = 2232526561
BaseRepresentation
bin10010001111001110110100
322222220021100
4102033032310
52210442410
6250250100
755431501
oct22171664
98886240
104780980
112776026
121726930
13cb51a9
148c64a8
156468c0
hex48f3b4

4780980 has 36 divisors (see below), whose sum is σ = 14502852. Its totient is φ = 1274880.

The previous prime is 4780973. The next prime is 4781009. The reversal of 4780980 is 890874.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 1774224 = 1734^2 + 1332^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13101 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (402857).

Almost surely, 24780980 is an apocalyptic number.

It is an amenable number.

4780980 is an abundant number, since it is smaller than the sum of its proper divisors (9721872).

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

4780980 is a wasteful number, since it uses less digits than its factorization.

4780980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26576 (or 26571 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 4780980 is about 2186.5452202047. The cubic root of 4780980 is about 168.4634313244.

The spelling of 4780980 in words is "four million, seven hundred eighty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 26561 53122 79683 106244 132805 159366 239049 265610 318732 398415 478098 531220 796830 956196 1195245 1593660 2390490 4780980