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13479081 = 3711234359
BaseRepresentation
bin110011011010…
…110010101001
3221100210211020
4303122302221
511422312311
61200523053
7222366420
oct63326251
927323736
1013479081
117677040
124620489
132a3c2b5
141b0c2b7
1512b3c06
hexcdaca9

13479081 has 64 divisors (see below), whose sum is σ = 24330240. Its totient is φ = 6431040.

The previous prime is 13479077. The next prime is 13479107. The reversal of 13479081 is 18097431.

13479081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13479081 - 22 = 13479077 is a prime.

It is a super-2 number, since 2×134790812 = 363371249209122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13479001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228430 + ... + 228488.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

Almost surely, 213479081 is an apocalyptic number.

13479081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13479081 is a deficient number, since it is larger than the sum of its proper divisors (10851159).

13479081 is a wasteful number, since it uses less digits than its factorization.

13479081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 13479081 is about 3671.3867952042. The cubic root of 13479081 is about 237.9871059088.

The spelling of 13479081 in words is "thirteen million, four hundred seventy-nine thousand, eighty-one".

Divisors: 1 3 7 11 21 23 33 43 59 69 77 129 161 177 231 253 301 413 473 483 649 759 903 989 1239 1357 1419 1771 1947 2537 2967 3311 4071 4543 5313 6923 7611 9499 9933 10879 13629 14927 17759 20769 27907 28497 32637 44781 53277 58351 76153 83721 104489 175053 195349 228459 313467 408457 586047 641861 1225371 1925583 4493027 13479081