Search a number
-
+
4679920 = 245761137
BaseRepresentation
bin10001110110100011110000
322210202122101
4101312203300
52144224140
6244150144
754531040
oct21664360
98722571
104679920
112707103
121698354
13c7b1ab
1489b720
1562699a
hex4768f0

4679920 has 80 divisors (see below), whose sum is σ = 12731328. Its totient is φ = 1566720.

The previous prime is 4679911. The next prime is 4679921. The reversal of 4679920 is 299764.

It is a tau number, because it is divible by the number of its divisors (80).

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 4679920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4679921) 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, 34092 + ... + 34228.

Almost surely, 24679920 is an apocalyptic number.

4679920 is a gapful number since it is divisible by the number (40) 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 4679920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6365664).

4679920 is an abundant number, since it is smaller than the sum of its proper divisors (8051408).

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

4679920 is a wasteful number, since it uses less digits than its factorization.

4679920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 4679920 is about 2163.3122751928. The cubic root of 4679920 is about 167.2679790426.

The spelling of 4679920 in words is "four million, six hundred seventy-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 61 70 80 112 122 137 140 244 274 280 305 427 488 548 560 610 685 854 959 976 1096 1220 1370 1708 1918 2135 2192 2440 2740 3416 3836 4270 4795 4880 5480 6832 7672 8357 8540 9590 10960 15344 16714 17080 19180 33428 34160 38360 41785 58499 66856 76720 83570 116998 133712 167140 233996 292495 334280 467992 584990 668560 935984 1169980 2339960 4679920