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55821684230 = 2513429397571
BaseRepresentation
bin110011111111001110…
…110100111000000110
312100002022100101001022
4303333032310320012
51403310322343410
641351044231142
74014212326034
oct637716647006
9170068311038
1055821684230
1121745981634
12a99a69b4b2
135357c043b0
1429b79a3554
1516baa08455
hexcff3b4e06

55821684230 has 16 divisors (see below), whose sum is σ = 108208188144. Its totient is φ = 20611083360.

The previous prime is 55821684209. The next prime is 55821684263. The reversal of 55821684230 is 3248612855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214698656 + ... + 214698915.

It is an arithmetic number, because the mean of its divisors is an integer number (6763011759).

Almost surely, 255821684230 is an apocalyptic number.

55821684230 is a deficient number, since it is larger than the sum of its proper divisors (52386503914).

55821684230 is a wasteful number, since it uses less digits than its factorization.

55821684230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429397591.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 55821684230 in words is "fifty-five billion, eight hundred twenty-one million, six hundred eighty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 429397571 858795142 2146987855 4293975710 5582168423 11164336846 27910842115 55821684230