Search a number
-
+
48780225 = 34521317109
BaseRepresentation
bin1011101000010…
…1001111000001
310101210021220000
42322011033001
544441431400
64501310213
71131424254
oct272051701
9111707800
1048780225
112559833a
1214405369
13a14c150
14669b09b
154438600
hex2e853c1

48780225 has 120 divisors (see below), whose sum is σ = 103977720. Its totient is φ = 22394880.

The previous prime is 48780223. The next prime is 48780227. The reversal of 48780225 is 52208784.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (48780223) and next prime (48780227).

It can be written as a sum of positive squares in 12 ways, for example, as 10439361 + 38340864 = 3231^2 + 6192^2 .

It is not a de Polignac number, because 48780225 - 21 = 48780223 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 48780225.

It is not an unprimeable number, because it can be changed into a prime (48780223) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 447471 + ... + 447579.

It is an arithmetic number, because the mean of its divisors is an integer number (866481).

Almost surely, 248780225 is an apocalyptic number.

48780225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

48780225 is an abundant number, since it is smaller than the sum of its proper divisors (55197495).

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

48780225 is a wasteful number, since it uses less digits than its factorization.

48780225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 48780225 is about 6984.2841437043. The cubic root of 48780225 is about 365.3826599228.

The spelling of 48780225 in words is "forty-eight million, seven hundred eighty thousand, two hundred twenty-five".

Divisors: 1 3 5 9 13 15 17 25 27 39 45 51 65 75 81 85 109 117 135 153 195 221 225 255 325 327 351 405 425 459 545 585 663 675 765 975 981 1053 1105 1275 1377 1417 1635 1755 1853 1989 2025 2295 2725 2925 2943 3315 3825 4251 4905 5265 5525 5559 5967 6885 7085 8175 8775 8829 9265 9945 11475 12753 14715 16575 16677 17901 21255 24089 24525 26325 27795 29835 34425 35425 38259 44145 46325 49725 50031 63765 72267 73575 83385 89505 106275 114777 120445 138975 149175 150093 191295 216801 220725 250155 318825 361335 416925 447525 573885 602225 650403 750465 956475 1084005 1250775 1806675 1951209 2869425 3252015 3752325 5420025 9756045 16260075 48780225