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550011013 = 17291115641
BaseRepresentation
bin100000110010001…
…000000010000101
31102022221110021021
4200302020002011
52111300323023
6130324351141
716426005436
oct4062100205
91368843237
10550011013
11262515462
121342454b1
1389c45506
145309348d
153344635d
hex20c88085

550011013 has 8 divisors (see below), whose sum is σ = 602446680. Its totient is φ = 499806720.

The previous prime is 550010999. The next prime is 550011017. The reversal of 550011013 is 310110055.

It can be written as a sum of positive squares in 4 ways, for example, as 30991489 + 519019524 = 5567^2 + 22782^2 .

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 550011013 - 29 = 550010501 is a prime.

It is a super-2 number, since 2×5500110132 = 605024228842572338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550011017) 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, 557328 + ... + 558313.

It is an arithmetic number, because the mean of its divisors is an integer number (75305835).

Almost surely, 2550011013 is an apocalyptic number.

It is an amenable number.

550011013 is a deficient number, since it is larger than the sum of its proper divisors (52435667).

550011013 is a wasteful number, since it uses less digits than its factorization.

550011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115687.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 550011013 is about 23452.3135958907. The cubic root of 550011013 is about 819.3267391612.

Adding to 550011013 its reverse (310110055), we get a palindrome (860121068).

The spelling of 550011013 in words is "five hundred fifty million, eleven thousand, thirteen".

Divisors: 1 17 29 493 1115641 18965897 32353589 550011013