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554009449 = 779144207
BaseRepresentation
bin100001000001011…
…000001101101001
31102121110121002111
4201001120031221
52113311300244
6130550202321
716505000620
oct4101301551
91377417074
10554009449
112647a6554
121356533a1
138aa15456
14538146b7
1533985e34
hex21058369

554009449 has 4 divisors (see below), whose sum is σ = 633153664. Its totient is φ = 474865236.

The previous prime is 554009431. The next prime is 554009461. The reversal of 554009449 is 944900455.

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 554009449 - 27 = 554009321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554009149) 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, 39572097 + ... + 39572110.

It is an arithmetic number, because the mean of its divisors is an integer number (158288416).

Almost surely, 2554009449 is an apocalyptic number.

It is an amenable number.

554009449 is a deficient number, since it is larger than the sum of its proper divisors (79144215).

554009449 is an equidigital number, since it uses as much as digits as its factorization.

554009449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79144214.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 554009449 is about 23537.4053157947. The cubic root of 554009449 is about 821.3073775751.

The spelling of 554009449 in words is "five hundred fifty-four million, nine thousand, four hundred forty-nine".

Divisors: 1 7 79144207 554009449