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230011155 = 325112389227
BaseRepresentation
bin11011011010110…
…11000100010011
3121000210202222200
431231123010103
5432340324110
634453534243
75462030313
oct1555330423
9530722880
10230011155
11108920870
1265044383
133886439a
1422795443
15152d66c0
hexdb5b113

230011155 has 96 divisors (see below), whose sum is σ = 460961280. Its totient is φ = 105008640.

The previous prime is 230011147. The next prime is 230011163. The reversal of 230011155 is 551110032.

It is an interprime number because it is at equal distance from previous prime (230011147) and next prime (230011163).

It is not a de Polignac number, because 230011155 - 23 = 230011147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1013152 + ... + 1013378.

It is an arithmetic number, because the mean of its divisors is an integer number (4801680).

Almost surely, 2230011155 is an apocalyptic number.

230011155 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

230011155 is a wasteful number, since it uses less digits than its factorization.

230011155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 230011155 is about 15166.1186531030. The cubic root of 230011155 is about 612.7024725592.

Adding to 230011155 its reverse (551110032), we get a palindrome (781121187).

The spelling of 230011155 in words is "two hundred thirty million, eleven thousand, one hundred fifty-five".

Divisors: 1 3 5 9 11 15 23 33 45 55 69 89 99 115 165 207 227 253 267 345 445 495 681 759 801 979 1035 1135 1265 1335 2043 2047 2277 2497 2937 3405 3795 4005 4895 5221 6141 7491 8811 10215 10235 11385 12485 14685 15663 18423 20203 22473 22517 26105 30705 37455 44055 46989 57431 60609 67551 78315 92115 101015 112365 112585 172293 181827 202653 222233 234945 287155 303045 337755 464669 516879 666699 861465 909135 1013265 1111165 1394007 2000097 2323345 2584395 3333495 4182021 5111359 6970035 10000485 15334077 20910105 25556795 46002231 76670385 230011155