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219341824 = 2101316477
BaseRepresentation
bin11010001001011…
…10010000000000
3120021201201102021
431010232100000
5422122414244
633433131224
75302242352
oct1504562000
9507651367
10219341824
111028a3839
1261559b14
1336599c80
14211b90d2
15143ca284
hexd12e400

219341824 has 44 divisors (see below), whose sum is σ = 472226524. Its totient is φ = 101228544.

The previous prime is 219341807. The next prime is 219341831. The reversal of 219341824 is 428143912.

219341824 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51380224 + 167961600 = 7168^2 + 12960^2 .

It is a super-2 number, since 2×2193418242 = 96221671511293952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 219341824.

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, 5074 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (10732421).

Almost surely, 2219341824 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 219341824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236113262).

219341824 is an abundant number, since it is smaller than the sum of its proper divisors (252884700).

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

219341824 is a wasteful number, since it uses less digits than its factorization.

219341824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16510 (or 16492 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 219341824 is about 14810.1932465448. The cubic root of 219341824 is about 603.0784596123.

The spelling of 219341824 in words is "two hundred nineteen million, three hundred forty-one thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 512 832 1024 1664 3328 6656 13312 16477 32954 65908 131816 214201 263632 428402 527264 856804 1054528 1713608 2109056 3427216 4218112 6854432 8436224 13708864 16872448 27417728 54835456 109670912 219341824