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551452013 = 778778859
BaseRepresentation
bin100000110111100…
…111110101101101
31102102122122221122
4200313213311231
52112132431023
6130415310325
716444156550
oct4067476555
91372578848
10551452013
1126330a072
1213481b3a5
138a32b388
145334a697
153362d2c8
hex20de7d6d

551452013 has 4 divisors (see below), whose sum is σ = 630230880. Its totient is φ = 472673148.

The previous prime is 551451997. The next prime is 551452019. The reversal of 551452013 is 310254155.

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 551452013 - 24 = 551451997 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 (551452019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39389423 + ... + 39389436.

It is an arithmetic number, because the mean of its divisors is an integer number (157557720).

Almost surely, 2551452013 is an apocalyptic number.

It is an amenable number.

551452013 is a deficient number, since it is larger than the sum of its proper divisors (78778867).

551452013 is an equidigital number, since it uses as much as digits as its factorization.

551452013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78778866.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 551452013 is about 23483.0154154018. The cubic root of 551452013 is about 820.0416462092.

The spelling of 551452013 in words is "five hundred fifty-one million, four hundred fifty-two thousand, thirteen".

Divisors: 1 7 78778859 551452013