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55022323 = 103952957
BaseRepresentation
bin1101000111100…
…1001011110011
310211112102102211
43101321023303
5103041203243
65243152551
71235452636
oct321711363
9124472384
1055022323
11290710a4
1216515757
13b5263b5
147443c1d
154c6cd9d
hex34792f3

55022323 has 4 divisors (see below), whose sum is σ = 55076320. Its totient is φ = 54968328.

The previous prime is 55022311. The next prime is 55022333. The reversal of 55022323 is 32322055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32322055 = 56464411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55022323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55022294 and 55022303.

It is not an unprimeable number, because it can be changed into a prime (55022333) 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, 25440 + ... + 27517.

It is an arithmetic number, because the mean of its divisors is an integer number (13769080).

Almost surely, 255022323 is an apocalyptic number.

55022323 is a deficient number, since it is larger than the sum of its proper divisors (53997).

55022323 is a wasteful number, since it uses less digits than its factorization.

55022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53996.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55022323 is about 7417.7033507683. The cubic root of 55022323 is about 380.3466896065.

Adding to 55022323 its reverse (32322055), we get a palindrome (87344378).

The spelling of 55022323 in words is "fifty-five million, twenty-two thousand, three hundred twenty-three".

Divisors: 1 1039 52957 55022323