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145043055 = 3551961103
BaseRepresentation
bin10001010010100…
…10111001101111
3101002220221200000
420221102321233
5244112334210
622220435343
73410563023
oct1051227157
9332827600
10145043055
1174966aa3
12406a8b53
13240848c1
1415398383
15cb00ac0
hex8a52e6f

145043055 has 96 divisors (see below), whose sum is σ = 281648640. Its totient is φ = 71383680.

The previous prime is 145043039. The next prime is 145043057. The reversal of 145043055 is 550340541.

It is not a de Polignac number, because 145043055 - 24 = 145043039 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 (145043057) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1408134 + ... + 1408236.

It is an arithmetic number, because the mean of its divisors is an integer number (2933840).

Almost surely, 2145043055 is an apocalyptic number.

145043055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145043055 is a deficient number, since it is larger than the sum of its proper divisors (136605585).

145043055 is a wasteful number, since it uses less digits than its factorization.

145043055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 145043055 is about 12043.3822076691. The cubic root of 145043055 is about 525.4107805462.

Adding to 145043055 its reverse (550340541), we get a palindrome (695383596).

The spelling of 145043055 in words is "one hundred forty-five million, forty-three thousand, fifty-five".

Divisors: 1 3 5 9 15 19 27 45 57 61 81 95 103 135 171 183 243 285 305 309 405 513 515 549 855 915 927 1159 1215 1539 1545 1647 1957 2565 2745 2781 3477 4617 4635 4941 5795 5871 6283 7695 8235 8343 9785 10431 13905 14823 17385 17613 18849 23085 24705 25029 29355 31293 31415 41715 52155 52839 56547 74115 88065 93879 94245 119377 125145 156465 158517 169641 264195 281637 282735 358131 469395 475551 508923 596885 792585 848205 1074393 1408185 1526769 1790655 2377755 2544615 3223179 5371965 7633845 9669537 16115895 29008611 48347685 145043055