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551506013 = 9719928571
BaseRepresentation
bin100000110111110…
…101000001011101
31102102202102000122
4200313311001131
52112141143023
6130420404325
716444503152
oct4067650135
91372672018
10551506013
112633466a3
121348466a5
138a349b26
1453362229
153363e2c8
hex20df505d

551506013 has 8 divisors (see below), whose sum is σ = 560011200. Its totient is φ = 543058560.

The previous prime is 551506001. The next prime is 551506049. The reversal of 551506013 is 310605155.

551506013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 551506013 - 26 = 551505949 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 (551506513) 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, 5018 + ... + 33588.

It is an arithmetic number, because the mean of its divisors is an integer number (70001400).

Almost surely, 2551506013 is an apocalyptic number.

It is an amenable number.

551506013 is a deficient number, since it is larger than the sum of its proper divisors (8505187).

551506013 is a wasteful number, since it uses less digits than its factorization.

551506013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28867.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 551506013 is about 23484.1651544184. The cubic root of 551506013 is about 820.0684123965.

The spelling of 551506013 in words is "five hundred fifty-one million, five hundred six thousand, thirteen".

Divisors: 1 97 199 19303 28571 2771387 5685629 551506013