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55351293 = 333915441
BaseRepresentation
bin1101001100100…
…1011111111101
310212011010200220
43103021133331
5103132220133
65254211553
71241323014
oct323113775
9125133626
1055351293
1129276278
1216653bb9
13b61005a
1474cba7b
154cd55b3
hex34c97fd

55351293 has 8 divisors (see below), whose sum is σ = 73837056. Its totient is φ = 36883200.

The previous prime is 55351291. The next prime is 55351319. The reversal of 55351293 is 39215355.

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

It is not a de Polignac number, because 55351293 - 21 = 55351291 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55351291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7453 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (9229632).

Almost surely, 255351293 is an apocalyptic number.

It is an amenable number.

55351293 is a deficient number, since it is larger than the sum of its proper divisors (18485763).

55351293 is a wasteful number, since it uses less digits than its factorization.

55351293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8835.

The product of its digits is 20250, while the sum is 33.

The square root of 55351293 is about 7439.8449580620. The cubic root of 55351293 is about 381.1031953642.

The spelling of 55351293 in words is "fifty-five million, three hundred fifty-one thousand, two hundred ninety-three".

Divisors: 1 3 3391 5441 10173 16323 18450431 55351293