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4879540 = 2252947179
BaseRepresentation
bin10010100111010010110100
3100011220110201
4102213102310
52222121130
6252330244
756322031
oct22472264
910156421
104879540
112833086
121773984
13101b003
14910388
15665bca
hex4a74b4

4879540 has 48 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 1834112.

The previous prime is 4879531. The next prime is 4879541. The reversal of 4879540 is 459784.

It is a super-2 number, since 2×48795402 = 47619821223200, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4879540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4879541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27171 + ... + 27349.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 24879540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4879540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5443200).

4879540 is an abundant number, since it is smaller than the sum of its proper divisors (6006860).

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

4879540 is a wasteful number, since it uses less digits than its factorization.

4879540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 4879540 is about 2208.9680848758. The cubic root of 4879540 is about 169.6131920586.

It can be divided in two parts, 4879 and 540, that multiplied together give a triangular number (2634660 = T2295).

The spelling of 4879540 in words is "four million, eight hundred seventy-nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 47 58 94 116 145 179 188 235 290 358 470 580 716 895 940 1363 1790 2726 3580 5191 5452 6815 8413 10382 13630 16826 20764 25955 27260 33652 42065 51910 84130 103820 168260 243977 487954 975908 1219885 2439770 4879540