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55023443 = 257347617
BaseRepresentation
bin1101000111100…
…1011101010011
310211112110222022
43101321131103
5103041222233
65243202055
71235456126
oct321713523
9124473868
1055023443
1129071a22
121651632b
13b526a67
1474443bd
154c6d398
hex3479753

55023443 has 8 divisors (see below), whose sum is σ = 55486512. Its totient is φ = 54562816.

The previous prime is 55023431. The next prime is 55023473. The reversal of 55023443 is 34432055.

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 55023443 - 24 = 55023427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55023473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88871 + ... + 89487.

It is an arithmetic number, because the mean of its divisors is an integer number (6935814).

Almost surely, 255023443 is an apocalyptic number.

55023443 is a deficient number, since it is larger than the sum of its proper divisors (463069).

55023443 is a wasteful number, since it uses less digits than its factorization.

55023443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 55023443 is about 7417.7788454496. The cubic root of 55023443 is about 380.3492702888.

Adding to 55023443 its reverse (34432055), we get a palindrome (89455498).

The spelling of 55023443 in words is "fifty-five million, twenty-three thousand, four hundred forty-three".

Divisors: 1 257 347 617 89179 158569 214099 55023443