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13667913 = 337210331
BaseRepresentation
bin110100001000…
…111001001001
3221201101212000
4310020321021
511444333123
61204541213
7224114100
oct64107111
927641760
1013667913
1177959a6
1246b1809
132aa722c
141b5b037
1512eeb43
hexd08e49

13667913 has 24 divisors (see below), whose sum is σ = 23556960. Its totient is φ = 7809480.

The previous prime is 13667891. The next prime is 13667921. The reversal of 13667913 is 31976631.

13667913 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 13667913 - 28 = 13667657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13667923) 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, 3843 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (981540).

Almost surely, 213667913 is an apocalyptic number.

It is an amenable number.

13667913 is a deficient number, since it is larger than the sum of its proper divisors (9889047).

13667913 is a wasteful number, since it uses less digits than its factorization.

13667913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354 (or 10341 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 13667913 is about 3697.0140654317. The cubic root of 13667913 is about 239.0932976086.

The spelling of 13667913 in words is "thirteen million, six hundred sixty-seven thousand, nine hundred thirteen".

Divisors: 1 3 7 9 21 27 49 63 147 189 441 1323 10331 30993 72317 92979 216951 278937 506219 650853 1518657 1952559 4555971 13667913