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55970383 = 77995769
BaseRepresentation
bin1101010110000…
…0101001001111
310220022120221011
43111200221033
5103312023013
65315350051
71246511650
oct325405117
9126276834
1055970383
1129659417
12168b2327
13b798a91
14760d527
154da8c3d
hex3560a4f

55970383 has 4 divisors (see below), whose sum is σ = 63966160. Its totient is φ = 47974608.

The previous prime is 55970363. The next prime is 55970389. The reversal of 55970383 is 38307955.

It is a happy number.

55970383 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 not a de Polignac number, because 55970383 - 25 = 55970351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55970389) 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, 3997878 + ... + 3997891.

It is an arithmetic number, because the mean of its divisors is an integer number (15991540).

Almost surely, 255970383 is an apocalyptic number.

55970383 is a deficient number, since it is larger than the sum of its proper divisors (7995777).

55970383 is an equidigital number, since it uses as much as digits as its factorization.

55970383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7995776.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 55970383 is about 7481.3356427846. The cubic root of 55970383 is about 382.5187778954.

The spelling of 55970383 in words is "fifty-five million, nine hundred seventy thousand, three hundred eighty-three".

Divisors: 1 7 7995769 55970383