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13006906 = 2111929237
BaseRepresentation
bin110001100111…
…100000111010
3220110211010021
4301213200322
511312210111
61142441054
7215362003
oct61474072
926424107
1013006906
117384310
12443318a
1329053c3
141a281aa
15121dd71
hexc6783a

13006906 has 48 divisors (see below), whose sum is σ = 23830560. Its totient is φ = 5261760.

The previous prime is 13006897. The next prime is 13006907. The reversal of 13006906 is 60960031.

13006906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13006907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 351520 + ... + 351556.

It is an arithmetic number, because the mean of its divisors is an integer number (496470).

Almost surely, 213006906 is an apocalyptic number.

13006906 is a deficient number, since it is larger than the sum of its proper divisors (10823654).

13006906 is a wasteful number, since it uses less digits than its factorization.

13006906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 13006906 is about 3606.5088381980. The cubic root of 13006906 is about 235.1750981125.

Adding to 13006906 its reverse (60960031), we get a palindrome (73966937).

The spelling of 13006906 in words is "thirteen million, six thousand, nine hundred six".

Divisors: 1 2 11 19 22 29 37 38 58 74 209 319 407 418 551 638 703 814 841 1073 1102 1406 1682 2146 6061 7733 9251 11803 12122 15466 15979 18502 20387 23606 31117 31958 40774 62234 175769 224257 342287 351538 448514 591223 684574 1182446 6503453 13006906