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55313123 = 196743451
BaseRepresentation
bin1101001100000…
…0001011100011
310212002012100012
43103000023203
5103130004443
65253315135
71241103515
oct323001343
9125065305
1055313123
112924a628
1216635aab
13b5c8878
1474bbbb5
154cc9118
hex34c02e3

55313123 has 8 divisors (see below), whose sum is σ = 59094720. Its totient is φ = 51618600.

The previous prime is 55313107. The next prime is 55313129. The reversal of 55313123 is 32131355.

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

It is a cyclic number.

It is not a de Polignac number, because 55313123 - 24 = 55313107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55313129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20453 + ... + 22998.

It is an arithmetic number, because the mean of its divisors is an integer number (7386840).

Almost surely, 255313123 is an apocalyptic number.

55313123 is a deficient number, since it is larger than the sum of its proper divisors (3781597).

55313123 is a wasteful number, since it uses less digits than its factorization.

55313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43537.

The product of its digits is 1350, while the sum is 23.

The square root of 55313123 is about 7437.2792740356. The cubic root of 55313123 is about 381.0155728761.

Adding to 55313123 its reverse (32131355), we get a palindrome (87444478).

The spelling of 55313123 in words is "fifty-five million, three hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 19 67 1273 43451 825569 2911217 55313123