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230330311145 = 511191231179051
BaseRepresentation
bin1101011010000011000…
…0011010000111101001
3211000112010010010120122
43112200300122013221
512233204024424040
6253451241533025
722432541225054
oct3264060320751
9730463103518
10230330311145
1189756501950
12387811a4175
1318948c6584c
14b21034da9b
155ed10981b5
hex35a0c1a1e9

230330311145 has 32 divisors (see below), whose sum is σ = 317652572160. Its totient is φ = 158566680000.

The previous prime is 230330311117. The next prime is 230330311153. The reversal of 230330311145 is 541113033032.

It is a de Polignac number, because none of the positive numbers 2k-230330311145 is a prime.

It is a super-2 number, since 2×2303303111452 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1196870 + ... + 1375920.

It is an arithmetic number, because the mean of its divisors is an integer number (9926642880).

Almost surely, 2230330311145 is an apocalyptic number.

It is an amenable number.

230330311145 is a deficient number, since it is larger than the sum of its proper divisors (87322261015).

230330311145 is a wasteful number, since it uses less digits than its factorization.

230330311145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180317.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 230330311145 its reverse (541113033032), we get a palindrome (771443344177).

The spelling of 230330311145 in words is "two hundred thirty billion, three hundred thirty million, three hundred eleven thousand, one hundred forty-five".

Divisors: 1 5 11 19 55 95 209 1045 1231 6155 13541 23389 67705 116945 179051 257279 895255 1286395 1969561 3401969 9847805 17009845 37421659 187108295 220411781 1102058905 2424529591 4187823839 12122647955 20939119195 46066062229 230330311145