Search a number
-
+
800144320 = 26561179229
BaseRepresentation
bin101111101100010…
…011101111000000
32001202121112122211
4233230103233000
53114314104240
6211221511504
725554054163
oct5754235700
92052545584
10800144320
1138072a2a8
121a3b72594
13c9a037a1
14783a5ada
154a3a4bea
hex2fb13bc0

800144320 has 112 divisors (see below), whose sum is σ = 1955901600. Its totient is φ = 311685120.

The previous prime is 800144281. The next prime is 800144327. The reversal of 800144320 is 23441008.

It is a junction number, because it is equal to n+sod(n) for n = 800144291 and 800144300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800144327) 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, 3493966 + ... + 3494194.

Almost surely, 2800144320 is an apocalyptic number.

800144320 is a gapful number since it is divisible by the number (80) 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 800144320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977950800).

800144320 is an abundant number, since it is smaller than the sum of its proper divisors (1155757280).

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

800144320 is a wasteful number, since it uses less digits than its factorization.

800144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 800144320 is about 28286.8223736778. The cubic root of 800144320 is about 928.3735862078.

Adding to 800144320 its reverse (23441008), we get a palindrome (823585328).

The spelling of 800144320 in words is "eight hundred million, one hundred forty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 64 80 122 160 179 229 244 305 320 358 458 488 610 716 895 916 976 1145 1220 1432 1790 1832 1952 2290 2440 2864 3580 3664 3904 4580 4880 5728 7160 7328 9160 9760 10919 11456 13969 14320 14656 18320 19520 21838 27938 28640 36640 40991 43676 54595 55876 57280 69845 73280 81982 87352 109190 111752 139690 163964 174704 204955 218380 223504 279380 327928 349408 409910 436760 447008 558760 655856 698816 819820 873520 894016 1117520 1311712 1639640 1747040 2235040 2500451 2623424 3279280 3494080 4470080 5000902 6558560 10001804 12502255 13117120 20003608 25004510 40007216 50009020 80014432 100018040 160028864 200036080 400072160 800144320