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561160054 = 27213440471
BaseRepresentation
bin100001011100101…
…001111101110110
31110002220212212201
4201130221331312
52122124110204
6131403335114
716622532100
oct4134517566
91402825781
10561160054
1126883a944
12137b2149a
138c34a090
1454756570
15343e99a4
hex21729f76

561160054 has 24 divisors (see below), whose sum is σ = 1054489968. Its totient is φ = 221996880.

The previous prime is 561160043. The next prime is 561160069. The reversal of 561160054 is 450061165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218962 + ... + 221509.

It is an arithmetic number, because the mean of its divisors is an integer number (43937082).

Almost surely, 2561160054 is an apocalyptic number.

561160054 is a deficient number, since it is larger than the sum of its proper divisors (493329914).

561160054 is a wasteful number, since it uses less digits than its factorization.

561160054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440500 (or 440493 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 561160054 is about 23688.8170662868. The cubic root of 561160054 is about 824.8258237749.

The spelling of 561160054 in words is "five hundred sixty-one million, one hundred sixty thousand, fifty-four".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1274 440471 880942 3083297 5726123 6166594 11452246 21583079 40082861 43166158 80165722 280580027 561160054