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13499545 = 511323893
BaseRepresentation
bin110011011111…
…110010011001
3221101211220011
4303133302121
511423441140
61201201521
7222513163
oct63376231
927354804
1013499545
117690454
1246302a1
132a486c7
141b15933
1512b9cea
hexcdfc99

13499545 has 8 divisors (see below), whose sum is σ = 16343496. Its totient is φ = 10703616.

The previous prime is 13499543. The next prime is 13499611. The reversal of 13499545 is 54599431.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 12702096 = 893^2 + 3564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13499545 - 21 = 13499543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13499498 and 13499507.

It is not an unprimeable number, because it can be changed into a prime (13499543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11382 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (2042937).

Almost surely, 213499545 is an apocalyptic number.

It is an amenable number.

13499545 is a deficient number, since it is larger than the sum of its proper divisors (2843951).

13499545 is a wasteful number, since it uses less digits than its factorization.

13499545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24011.

The product of its digits is 97200, while the sum is 40.

The square root of 13499545 is about 3674.1726959957. The cubic root of 13499545 is about 238.1074827004.

The spelling of 13499545 in words is "thirteen million, four hundred ninety-nine thousand, five hundred forty-five".

Divisors: 1 5 113 565 23893 119465 2699909 13499545