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11312055 = 345173153
BaseRepresentation
bin101011001001…
…101110110111
3210021201020000
4223021232313
510343441210
61042242343
7165102516
oct53115667
923251200
1011312055
116426a07
1239563b3
132460b31
14170667d
15ed6ac0
hexac9bb7

11312055 has 80 divisors (see below), whose sum is σ = 22581504. Its totient is φ = 5391360.

The previous prime is 11312051. The next prime is 11312057. The reversal of 11312055 is 55021311.

It is not a de Polignac number, because 11312055 - 22 = 11312051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312051) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 213409 + ... + 213461.

Almost surely, 211312055 is an apocalyptic number.

11312055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11312055 is a deficient number, since it is larger than the sum of its proper divisors (11269449).

11312055 is a wasteful number, since it uses less digits than its factorization.

11312055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 109 counting only the distinct ones).

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

The square root of 11312055 is about 3363.3398579388. The cubic root of 11312055 is about 224.4814726039.

Adding to 11312055 its reverse (55021311), we get a palindrome (66333366).

The spelling of 11312055 in words is "eleven million, three hundred twelve thousand, fifty-five".

Divisors: 1 3 5 9 15 17 27 31 45 51 53 81 85 93 135 153 155 159 255 265 279 405 459 465 477 527 765 795 837 901 1377 1395 1431 1581 1643 2295 2385 2511 2635 2703 4185 4293 4505 4743 4929 6885 7155 7905 8109 8215 12555 13515 14229 14787 21465 23715 24327 24645 27931 40545 42687 44361 71145 72981 73935 83793 121635 133083 139655 213435 221805 251379 364905 418965 665415 754137 1256895 2262411 3770685 11312055