Search a number
-
+
164000256 = 293722179
BaseRepresentation
bin10011100011001…
…11001000000000
3102102121002001120
421301213020000
5313441002011
624135032240
74030656600
oct1161471000
9372532046
10164000256
1184634902
1246b0b680
1327c91494
1417ad0c00
15e5e7a06
hex9c67200

164000256 has 120 divisors (see below), whose sum is σ = 508471920. Its totient is φ = 46835712.

The previous prime is 164000233. The next prime is 164000329. The reversal of 164000256 is 652000461.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 74175 + ... + 76353.

It is an arithmetic number, because the mean of its divisors is an integer number (4237266).

Almost surely, 2164000256 is an apocalyptic number.

164000256 is a gapful number since it is divisible by the number (16) 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 164000256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254235960).

164000256 is an abundant number, since it is smaller than the sum of its proper divisors (344471664).

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

164000256 is an equidigital number, since it uses as much as digits as its factorization.

164000256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 164000256 is about 12806.2584699826. The cubic root of 164000256 is about 547.3706522903.

The spelling of 164000256 in words is "one hundred sixty-four million, two hundred fifty-six", and thus it is an aban number.

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 384 392 448 512 588 672 768 784 896 1176 1344 1536 1568 1792 2179 2352 2688 3136 3584 4358 4704 5376 6272 6537 8716 9408 10752 12544 13074 15253 17432 18816 25088 26148 30506 34864 37632 45759 52296 61012 69728 75264 91518 104592 106771 122024 139456 183036 209184 213542 244048 278912 320313 366072 418368 427084 488096 557824 640626 732144 836736 854168 976192 1115648 1281252 1464288 1673472 1708336 1952384 2562504 2928576 3346944 3416672 3904768 5125008 5857152 6833344 7809536 10250016 11714304 13666688 20500032 23428608 27333376 41000064 54666752 82000128 164000256