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13311051 = 3131721181
BaseRepresentation
bin110010110001…
…110001001011
3221001021022220
4302301301023
511401423201
61153145123
7221066505
oct62616113
927037286
1013311051
117571876
12455b1a3
1329b0980
141aa6d75
15127e036
hexcb1c4b

13311051 has 24 divisors (see below), whose sum is σ = 20320944. Its totient is φ = 7703040.

The previous prime is 13311047. The next prime is 13311073. The reversal of 13311051 is 15011331.

13311051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13311051 - 22 = 13311047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13311051.

It is not an unprimeable number, because it can be changed into a prime (13311031) 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, 10681 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (846706).

Almost surely, 213311051 is an apocalyptic number.

13311051 is a deficient number, since it is larger than the sum of its proper divisors (7009893).

13311051 is a wasteful number, since it uses less digits than its factorization.

13311051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 13311051 is about 3648.4313067399. The cubic root of 13311051 is about 236.9940535103.

Adding to 13311051 its reverse (15011331), we get a palindrome (28322382).

The spelling of 13311051 in words is "thirteen million, three hundred eleven thousand, fifty-one".

Divisors: 1 3 13 17 39 51 221 289 663 867 1181 3543 3757 11271 15353 20077 46059 60231 261001 341309 783003 1023927 4437017 13311051