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55086838 = 288331193
BaseRepresentation
bin1101001000100…
…0111011110110
310211122200221021
43102020323312
5103100234323
65244411354
71236142012
oct322107366
9124580837
1055086838
1129105614
1216546b5a
13b549881
14745d542
154c8205d
hex3488ef6

55086838 has 8 divisors (see below), whose sum is σ = 82726488. Its totient is φ = 27511344.

The previous prime is 55086793. The next prime is 55086839. The reversal of 55086838 is 83868055.

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

It is a junction number, because it is equal to n+sod(n) for n = 55086794 and 55086803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55086839) 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, 13831 + ... + 17362.

It is an arithmetic number, because the mean of its divisors is an integer number (10340811).

Almost surely, 255086838 is an apocalyptic number.

55086838 is a deficient number, since it is larger than the sum of its proper divisors (27639650).

55086838 is a wasteful number, since it uses less digits than its factorization.

55086838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32078.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 55086838 is about 7422.0507947602. The cubic root of 55086838 is about 380.4952867642.

The spelling of 55086838 in words is "fifty-five million, eighty-six thousand, eight hundred thirty-eight".

Divisors: 1 2 883 1766 31193 62386 27543419 55086838