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230503455 = 33571329647
BaseRepresentation
bin11011011110100…
…11010000011111
3121001201210022000
431233103100133
5433002102310
634512253343
75466150510
oct1557232037
9531653260
10230503455
11109127726
1265241253
13389a74a0
1422882a07
15153824c0
hexdbd341f

230503455 has 128 divisors (see below), whose sum is σ = 522547200. Its totient is φ = 93768192.

The previous prime is 230503453. The next prime is 230503477. The reversal of 230503455 is 554305032.

It is not a de Polignac number, because 230503455 - 21 = 230503453 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 not an unprimeable number, because it can be changed into a prime (230503453) 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 127 ways as a sum of consecutive naturals, for example, 355942 + ... + 356588.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2230503455 is an apocalyptic number.

230503455 is an abundant number, since it is smaller than the sum of its proper divisors (292043745).

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

230503455 is a wasteful number, since it uses less digits than its factorization.

230503455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 230503455 is about 15182.3402346279. The cubic root of 230503455 is about 613.1392897566.

Adding to 230503455 its reverse (554305032), we get a palindrome (784808487).

The spelling of 230503455 in words is "two hundred thirty million, five hundred three thousand, four hundred fifty-five".

Divisors: 1 3 5 7 9 13 15 21 27 29 35 39 45 63 65 87 91 105 117 135 145 189 195 203 261 273 315 351 377 435 455 585 609 647 783 819 945 1015 1131 1305 1365 1755 1827 1885 1941 2457 2639 3045 3235 3393 3915 4095 4529 5481 5655 5823 7917 8411 9135 9705 10179 12285 13195 13587 16965 17469 18763 22645 23751 25233 27405 29115 39585 40761 42055 50895 56289 58877 67935 71253 75699 87345 93815 118755 122283 126165 131341 168867 176631 203805 227097 243919 281445 294385 356265 378495 394023 506601 529893 611415 656705 731757 844335 883155 1135485 1182069 1219595 1589679 1707433 1970115 2195271 2533005 2649465 3546207 3658785 5122299 5910345 6585813 7948395 8537165 10976355 15366897 17731035 25611495 32929065 46100691 76834485 230503455