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13355109 = 322951169
BaseRepresentation
bin110010111100…
…100001100101
3221010111202200
4302330201211
511404330414
61154125113
7221342115
oct62744145
927114680
1013355109
1175a1989
124580799
1329c7a41
141ab9045
15128c109
hexcbc865

13355109 has 12 divisors (see below), whose sum is σ = 19956300. Its totient is φ = 8596224.

The previous prime is 13355107. The next prime is 13355117. The reversal of 13355109 is 90155331.

13355109 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3526884 + 9828225 = 1878^2 + 3135^2 .

It is not a de Polignac number, because 13355109 - 21 = 13355107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13355101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25324 + ... + 25845.

It is an arithmetic number, because the mean of its divisors is an integer number (1663025).

Almost surely, 213355109 is an apocalyptic number.

It is an amenable number.

13355109 is a deficient number, since it is larger than the sum of its proper divisors (6601191).

13355109 is a wasteful number, since it uses less digits than its factorization.

13355109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51204 (or 51201 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 13355109 is about 3654.4642562214. The cubic root of 13355109 is about 237.2552396260.

The spelling of 13355109 in words is "thirteen million, three hundred fifty-five thousand, one hundred nine".

Divisors: 1 3 9 29 87 261 51169 153507 460521 1483901 4451703 13355109