Search a number
-
+
253210055 = 57193741251
BaseRepresentation
bin11110001011110…
…10110111000111
3122122110101220012
433011322313013
51004310210210
641043100435
76163151510
oct1705726707
9578411805
10253210055
1111aa2650a
127097171b
13405c7847
14258b3a07
151736a305
hexf17adc7

253210055 has 64 divisors (see below), whose sum is σ = 386104320. Its totient is φ = 155520000.

The previous prime is 253210051. The next prime is 253210079. The reversal of 253210055 is 550012352.

It is not a de Polignac number, because 253210055 - 22 = 253210051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253210055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253210051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1008680 + ... + 1008930.

It is an arithmetic number, because the mean of its divisors is an integer number (6032880).

Almost surely, 2253210055 is an apocalyptic number.

253210055 is a deficient number, since it is larger than the sum of its proper divisors (132894265).

253210055 is a wasteful number, since it uses less digits than its factorization.

253210055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 253210055 is about 15912.5753729558. The cubic root of 253210055 is about 632.6453435508.

The spelling of 253210055 in words is "two hundred fifty-three million, two hundred ten thousand, fifty-five".

Divisors: 1 5 7 19 35 37 41 95 133 185 205 251 259 287 665 703 779 1255 1295 1435 1517 1757 3515 3895 4769 4921 5453 7585 8785 9287 10291 10619 23845 24605 27265 28823 33383 46435 51455 53095 65009 72037 144115 166915 176453 195529 201761 325045 360185 380767 882265 977645 1008805 1235171 1368703 1903835 2665369 6175855 6843515 7234573 13326845 36172865 50642011 253210055