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230605245 = 335132329197
BaseRepresentation
bin11011011111011…
…00000110111101
3121001220221221000
431233230012331
5433013331440
634514400513
75500053333
oct1557540675
9531827830
10230605245
11109197152
1265290139
1338a11910
14228abb53
15153a2730
hexdbec1bd

230605245 has 128 divisors (see below), whose sum is σ = 479001600. Its totient is φ = 104315904.

The previous prime is 230605229. The next prime is 230605253. The reversal of 230605245 is 542506032.

230605245 is a `hidden beast` number, since 2 + 30 + 605 + 24 + 5 = 666.

It is not a de Polignac number, because 230605245 - 24 = 230605229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1170487 + ... + 1170683.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2230605245 is an apocalyptic number.

It is an amenable number.

230605245 is an abundant number, since it is smaller than the sum of its proper divisors (248396355).

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

230605245 is a wasteful number, since it uses less digits than its factorization.

230605245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 230605245 is about 15185.6921146189. The cubic root of 230605245 is about 613.2295302892.

The spelling of 230605245 in words is "two hundred thirty million, six hundred five thousand, two hundred forty-five".

Divisors: 1 3 5 9 13 15 23 27 29 39 45 65 69 87 115 117 135 145 195 197 207 261 299 345 351 377 435 585 591 621 667 783 897 985 1035 1131 1305 1495 1755 1773 1885 2001 2561 2691 2955 3105 3335 3393 3915 4485 4531 5319 5655 5713 6003 7683 8073 8671 8865 10005 10179 12805 13455 13593 16965 17139 18009 22655 23049 26013 26595 28565 30015 38415 40365 40779 43355 50895 51417 58903 67965 69147 74269 78039 85695 90045 115245 122337 130065 131399 154251 176709 203895 222807 234117 257085 294515 345735 371345 390195 394197 530127 611685 656995 668421 771255 883545 1114035 1170585 1182591 1590381 1708187 1970985 2005263 2650635 3342105 3547773 5124561 5912955 7951905 8540935 10026315 15373683 17738865 25622805 46121049 76868415 230605245