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554144421 = 3712601617
BaseRepresentation
bin100001000001111…
…001001010100101
31102121201110020110
4201001321022211
52113330110141
6130553123233
716506102255
oct4101711245
91377643213
10554144421
112648889a6
121356b9519
138aa61a0c
145384b965
15339b0e16
hex210792a5

554144421 has 8 divisors (see below), whose sum is σ = 749265984. Its totient is φ = 364226240.

The previous prime is 554144399. The next prime is 554144467. The reversal of 554144421 is 124441455.

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 554144421 - 25 = 554144389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554144491) 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, 1300596 + ... + 1301021.

It is an arithmetic number, because the mean of its divisors is an integer number (93658248).

Almost surely, 2554144421 is an apocalyptic number.

It is an amenable number.

554144421 is a deficient number, since it is larger than the sum of its proper divisors (195121563).

554144421 is a wasteful number, since it uses less digits than its factorization.

554144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601691.

The product of its digits is 12800, while the sum is 30.

The square root of 554144421 is about 23540.2723221292. The cubic root of 554144421 is about 821.3740698782.

Adding to 554144421 its reverse (124441455), we get a palindrome (678585876).

The spelling of 554144421 in words is "five hundred fifty-four million, one hundred forty-four thousand, four hundred twenty-one".

Divisors: 1 3 71 213 2601617 7804851 184714807 554144421