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13450949 = 131102679
BaseRepresentation
bin110011010011…
…111011000101
3221022101020022
4303103323011
511420412244
61200144525
7222221411
oct63237305
927271208
1013450949
117657996
124608145
132a2c555
141b01d41
1512aa6ee
hexcd3ec5

13450949 has 4 divisors (see below), whose sum is σ = 13553760. Its totient is φ = 13348140.

The previous prime is 13450937. The next prime is 13450999. The reversal of 13450949 is 94905431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13450949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13450909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51209 + ... + 51470.

It is an arithmetic number, because the mean of its divisors is an integer number (3388440).

Almost surely, 213450949 is an apocalyptic number.

It is an amenable number.

13450949 is a deficient number, since it is larger than the sum of its proper divisors (102811).

13450949 is a wasteful number, since it uses less digits than its factorization.

13450949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102810.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 13450949 is about 3667.5535442581. The cubic root of 13450949 is about 237.8214240796.

The spelling of 13450949 in words is "thirteen million, four hundred fifty thousand, nine hundred forty-nine".

Divisors: 1 131 102679 13450949