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554145330 = 23518471511
BaseRepresentation
bin100001000001111…
…001011000110010
31102121201111111010
4201001321120302
52113330122310
6130553131350
716506105024
oct4101713062
91377644433
10554145330
11264889652
121356b9b56
138aa6225b
145384c014
15339b1320
hex21079632

554145330 has 16 divisors (see below), whose sum is σ = 1329948864. Its totient is φ = 147772080.

The previous prime is 554145307. The next prime is 554145331. The reversal of 554145330 is 33541455.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 18471511 = 554145330 / (5 + 5 + 4 + 1 + 4 + 5 + 3 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (554145331) 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, 9235726 + ... + 9235785.

It is an arithmetic number, because the mean of its divisors is an integer number (83121804).

Almost surely, 2554145330 is an apocalyptic number.

554145330 is an abundant number, since it is smaller than the sum of its proper divisors (775803534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

554145330 is a wasteful number, since it uses less digits than its factorization.

554145330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471521.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 554145330 is about 23540.2916294595. The cubic root of 554145330 is about 821.3745189962.

Adding to 554145330 its reverse (33541455), we get a palindrome (587686785).

The spelling of 554145330 in words is "five hundred fifty-four million, one hundred forty-five thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 18471511 36943022 55414533 92357555 110829066 184715110 277072665 554145330