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55834540 = 22519146933
BaseRepresentation
bin1101010011111…
…1011110101100
310220001200120221
43110333132230
5103243201130
65312421124
71245404626
oct324773654
9126050527
1055834540
1129576353
12168477a4
13b74bcb8
1475b5c16
154d7d87a
hex353f7ac

55834540 has 24 divisors (see below), whose sum is σ = 123424560. Its totient is φ = 21158208.

The previous prime is 55834529. The next prime is 55834577. The reversal of 55834540 is 4543855.

It is a junction number, because it is equal to n+sod(n) for n = 55834496 and 55834505.

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 7 ways as a sum of consecutive naturals, for example, 73087 + ... + 73846.

It is an arithmetic number, because the mean of its divisors is an integer number (5142690).

Almost surely, 255834540 is an apocalyptic number.

It is an amenable number.

55834540 is an abundant number, since it is smaller than the sum of its proper divisors (67590020).

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

55834540 is a wasteful number, since it uses less digits than its factorization.

55834540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146961 (or 146959 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 55834540 is about 7472.2513341027. The cubic root of 55834540 is about 382.2090629421.

The spelling of 55834540 in words is "fifty-five million, eight hundred thirty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 146933 293866 587732 734665 1469330 2791727 2938660 5583454 11166908 13958635 27917270 55834540