[go: up one dir, main page]

Search a number
-
+
255255500 = 22531997277
BaseRepresentation
bin11110011011011…
…10001111001100
3122210022022201102
433031232033030
51010321134000
641155002232
76216431063
oct1715561714
9583268642
10255255500
111210a3265
1271599378
1340b62876
1425c871da
15176213d5
hexf36e3cc

255255500 has 96 divisors (see below), whose sum is σ = 595008960. Its totient is φ = 95385600.

The previous prime is 255255479. The next prime is 255255503. The reversal of 255255500 is 5552552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (255255503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921362 + ... + 921638.

It is an arithmetic number, because the mean of its divisors is an integer number (6198010).

Almost surely, 2255255500 is an apocalyptic number.

255255500 is a gapful number since it is divisible by the number (20) 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 255255500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297504480).

255255500 is an abundant number, since it is smaller than the sum of its proper divisors (339753460).

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

255255500 is a wasteful number, since it uses less digits than its factorization.

255255500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 255255500 is about 15976.7174350678. The cubic root of 255255500 is about 634.3442918313.

It can be divided in two parts, 25 and 5255500, that added together give a palindrome (5255525).

The spelling of 255255500 in words is "two hundred fifty-five million, two hundred fifty-five thousand, five hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 97 100 125 190 194 250 277 380 388 475 485 500 554 950 970 1108 1385 1843 1900 1940 2375 2425 2770 3686 4750 4850 5263 5540 6925 7372 9215 9500 9700 10526 12125 13850 18430 21052 24250 26315 26869 27700 34625 36860 46075 48500 52630 53738 69250 92150 105260 107476 131575 134345 138500 184300 230375 263150 268690 460750 510511 526300 537380 657875 671725 921500 1021022 1315750 1343450 2042044 2552555 2631500 2686900 3358625 5105110 6717250 10210220 12762775 13434500 25525550 51051100 63813875 127627750 255255500