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55315833 = 3179239431
BaseRepresentation
bin1101001100000…
…0110101111001
310212002100001120
43103000311321
5103130101313
65253335453
71241114436
oct323006571
9125070046
1055315833
1129251671
1216637589
13b5c9b81
1474bcb8d
154cc9d23
hex34c0d79

55315833 has 16 divisors (see below), whose sum is σ = 74649600. Its totient is φ = 36433040.

The previous prime is 55315829. The next prime is 55315861. The reversal of 55315833 is 33851355.

It is a happy number.

55315833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55315833 - 22 = 55315829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55315794 and 55315803.

It is not an unprimeable number, because it can be changed into a prime (55315033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128128 + ... + 128558.

It is an arithmetic number, because the mean of its divisors is an integer number (4665600).

Almost surely, 255315833 is an apocalyptic number.

It is an amenable number.

55315833 is a deficient number, since it is larger than the sum of its proper divisors (19333767).

55315833 is a wasteful number, since it uses less digits than its factorization.

55315833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its digits is 27000, while the sum is 33.

The square root of 55315833 is about 7437.4614620850. The cubic root of 55315833 is about 381.0217952412.

The spelling of 55315833 in words is "fifty-five million, three hundred fifteen thousand, eight hundred thirty-three".

Divisors: 1 3 179 239 431 537 717 1293 42781 77149 103009 128343 231447 309027 18438611 55315833