Search a number
-
+
208875144 = 23323478397
BaseRepresentation
bin11000111001100…
…10111010001000
3112120000221211110
430130302322020
5411433001034
632420530320
75114260302
oct1434627210
9476027743
10208875144
11a79a4a95
1259b509a0
1334373b7a
141da52972
151350dde9
hexc732e88

208875144 has 128 divisors (see below), whose sum is σ = 568995840. Its totient is φ = 63731712.

The previous prime is 208875137. The next prime is 208875169. The reversal of 208875144 is 441578802.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2153304 + ... + 2153400.

It is an arithmetic number, because the mean of its divisors is an integer number (4445280).

Almost surely, 2208875144 is an apocalyptic number.

208875144 is a gapful number since it is divisible by the number (24) 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 208875144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284497920).

208875144 is an abundant number, since it is smaller than the sum of its proper divisors (360120696).

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

208875144 is a wasteful number, since it uses less digits than its factorization.

208875144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 208875144 is about 14452.5134146279. The cubic root of 208875144 is about 593.3290159458.

The spelling of 208875144 in words is "two hundred eight million, eight hundred seventy-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 23 24 46 47 69 83 92 94 97 138 141 166 184 188 194 249 276 282 291 332 376 388 498 552 564 582 664 776 996 1081 1128 1164 1909 1992 2162 2231 2328 3243 3818 3901 4324 4462 4559 5727 6486 6693 7636 7802 8051 8648 8924 9118 11454 11703 12972 13386 13677 15272 15604 16102 17848 18236 22908 23406 24153 25944 26772 27354 31208 32204 36472 45816 46812 48306 53544 54708 64408 89723 93624 96612 104857 109416 179446 185173 193224 209714 269169 314571 358892 370346 378397 419428 538338 555519 629142 717784 740692 756794 838856 1076676 1111038 1135191 1258284 1481384 1513588 2153352 2222076 2270382 2516568 3027176 4444152 4540764 8703131 9081528 17406262 26109393 34812524 52218786 69625048 104437572 208875144