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8545013 = 68312511
BaseRepresentation
bin100000100110…
…001011110101
3121002010112222
4200212023311
54141420023
6503052125
7132426401
oct40461365
917063488
108545013
114906aa4
122a41045
131a02529
1411c6101
15b3bcc8
hex8262f5

8545013 has 4 divisors (see below), whose sum is σ = 8558208. Its totient is φ = 8531820.

The previous prime is 8545007. The next prime is 8545049. The reversal of 8545013 is 3105458.

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 not a de Polignac number, because 8545013 - 24 = 8544997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8545073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5573 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (2139552).

Almost surely, 28545013 is an apocalyptic number.

It is an amenable number.

8545013 is a deficient number, since it is larger than the sum of its proper divisors (13195).

8545013 is a wasteful number, since it uses less digits than its factorization.

8545013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 8545013 is about 2923.1854200512. The cubic root of 8545013 is about 204.4423711217.

The spelling of 8545013 in words is "eight million, five hundred forty-five thousand, thirteen".

Divisors: 1 683 12511 8545013