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554792081 = 3121177761
BaseRepresentation
bin100001000100010…
…111010010010001
31102122221100122212
4201010113102101
52114011321311
6131015041505
716514440424
oct4104272221
91378840585
10554792081
11265190558
12135970295
138ac2a74c
14539799bb
1533a8cc8b
hex21117491

554792081 has 4 divisors (see below), whose sum is σ = 554972964. Its totient is φ = 554611200.

The previous prime is 554792057. The next prime is 554792099. The reversal of 554792081 is 180297455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11669056 + 543123025 = 3416^2 + 23305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-554792081 is a prime.

It is a super-2 number, since 2×5547920812 = 615588506280621122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554792041) 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, 85760 + ... + 92001.

It is an arithmetic number, because the mean of its divisors is an integer number (138743241).

Almost surely, 2554792081 is an apocalyptic number.

It is an amenable number.

554792081 is a deficient number, since it is larger than the sum of its proper divisors (180883).

554792081 is a wasteful number, since it uses less digits than its factorization.

554792081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180882.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 554792081 is about 23554.0247303937. The cubic root of 554792081 is about 821.6939407735.

The spelling of 554792081 in words is "five hundred fifty-four million, seven hundred ninety-two thousand, eighty-one".

Divisors: 1 3121 177761 554792081