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8513606013 = 3111959373617
BaseRepresentation
bin1111110110111001…
…10101000101111101
3210222022211222220020
413323130311011331
5114413440343023
63524444042353
7420655312533
oct77334650575
923868758806
108513606013
113679788230
1217972333b9
13a58a801c3
145aa9a2153
1534c64ede3
hex1fb73517d

8513606013 has 64 divisors (see below), whose sum is σ = 13313203200. Its totient is φ = 4784693760.

The previous prime is 8513606011. The next prime is 8513606021. The reversal of 8513606013 is 3106063158.

It is not a de Polignac number, because 8513606013 - 21 = 8513606011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513606011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13798081 + ... + 13798697.

It is an arithmetic number, because the mean of its divisors is an integer number (208018800).

Almost surely, 28513606013 is an apocalyptic number.

It is an amenable number.

8513606013 is a deficient number, since it is larger than the sum of its proper divisors (4799597187).

8513606013 is a wasteful number, since it uses less digits than its factorization.

8513606013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 8513606013 is about 92269.2040336319. The cubic root of 8513606013 is about 2041.9158930550.

The spelling of 8513606013 in words is "eight billion, five hundred thirteen million, six hundred six thousand, thirteen".

Divisors: 1 3 11 19 33 57 59 177 209 373 617 627 649 1119 1121 1851 1947 3363 4103 6787 7087 11723 12309 12331 20361 21261 22007 35169 36403 36993 66021 77957 109209 128953 230141 233871 242077 386859 400433 418133 690423 691657 726231 1201299 1254399 2074971 2531551 4372679 4599463 7594653 7608227 13118037 13578319 13798389 22824681 40734957 48099469 144298407 149361509 257988061 448084527 773964183 2837868671 8513606013