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13450149 = 321494461
BaseRepresentation
bin110011010011…
…101110100101
3221022100010200
4303103232211
511420401044
61200141113
7222216156
oct63235645
927270120
1013450149
117657329
124607799
132a2c08b
141b0192d
1512aa369
hexcd3ba5

13450149 has 6 divisors (see below), whose sum is σ = 19428006. Its totient is φ = 8966760.

The previous prime is 13450133. The next prime is 13450159. The reversal of 13450149 is 94105431.

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 381924 = 3615^2 + 618^2 .

It is not a de Polignac number, because 13450149 - 24 = 13450133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13450109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 747222 + ... + 747239.

It is an arithmetic number, because the mean of its divisors is an integer number (3238001).

Almost surely, 213450149 is an apocalyptic number.

It is an amenable number.

13450149 is a deficient number, since it is larger than the sum of its proper divisors (5977857).

13450149 is a wasteful number, since it uses less digits than its factorization.

13450149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494467 (or 1494464 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13450149 is about 3667.4444781073. Note that the first 4 decimals coincide. The cubic root of 13450149 is about 237.8167091480.

The spelling of 13450149 in words is "thirteen million, four hundred fifty thousand, one hundred forty-nine".

Divisors: 1 3 9 1494461 4483383 13450149