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55430086 = 2149186007
BaseRepresentation
bin1101001101110…
…0101111000110
310212022010210011
43103130233012
5103142230321
65300020434
71242101515
oct323345706
9125263704
1055430086
112931a498
121669171a
13b639b8a
14750c67c
154cedae1
hex34dcbc6

55430086 has 8 divisors (see below), whose sum is σ = 83703600. Its totient is φ = 27528888.

The previous prime is 55430083. The next prime is 55430093. The reversal of 55430086 is 68003455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55430083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92706 + ... + 93301.

It is an arithmetic number, because the mean of its divisors is an integer number (10462950).

Almost surely, 255430086 is an apocalyptic number.

55430086 is a deficient number, since it is larger than the sum of its proper divisors (28273514).

55430086 is a wasteful number, since it uses less digits than its factorization.

55430086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186158.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 55430086 is about 7445.1384137570. The cubic root of 55430086 is about 381.2839440887.

The spelling of 55430086 in words is "fifty-five million, four hundred thirty thousand, eighty-six".

Divisors: 1 2 149 298 186007 372014 27715043 55430086