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55927319 = 77989617
BaseRepresentation
bin1101010101011…
…0001000010111
310220020101212012
43111112020113
5103304133234
65314414435
71246242260
oct325261027
9126211765
1055927319
112962a028
121689141b
13b7822b6
1475db967
154d9b0ce
hex3556217

55927319 has 4 divisors (see below), whose sum is σ = 63916944. Its totient is φ = 47937696.

The previous prime is 55927307. The next prime is 55927343. The reversal of 55927319 is 91372955.

55927319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55927319 is a prime.

It is a super-2 number, since 2×559273192 = 6255730021055522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55927369) 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 3 ways as a sum of consecutive naturals, for example, 3994802 + ... + 3994815.

It is an arithmetic number, because the mean of its divisors is an integer number (15979236).

Almost surely, 255927319 is an apocalyptic number.

55927319 is a deficient number, since it is larger than the sum of its proper divisors (7989625).

55927319 is an equidigital number, since it uses as much as digits as its factorization.

55927319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989624.

The product of its digits is 85050, while the sum is 41.

The square root of 55927319 is about 7478.4569932574. The cubic root of 55927319 is about 382.4206485257.

The spelling of 55927319 in words is "fifty-five million, nine hundred twenty-seven thousand, three hundred nineteen".

Divisors: 1 7 7989617 55927319