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55349733 = 318449911
BaseRepresentation
bin1101001100100…
…1000111100101
310212011001120010
43103021013211
5103132142413
65254200433
71241315325
oct323110745
9125131503
1055349733
112927508a
1216653119
13b60c42a
1474cb285
154cd4dc3
hex34c91e5

55349733 has 4 divisors (see below), whose sum is σ = 73799648. Its totient is φ = 36899820.

The previous prime is 55349689. The next prime is 55349737. The reversal of 55349733 is 33794355.

55349733 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55349733 - 220 = 54301157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55349691 and 55349700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55349737) 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, 9224953 + ... + 9224958.

It is an arithmetic number, because the mean of its divisors is an integer number (18449912).

Almost surely, 255349733 is an apocalyptic number.

It is an amenable number.

55349733 is a deficient number, since it is larger than the sum of its proper divisors (18449915).

55349733 is a wasteful number, since it uses less digits than its factorization.

55349733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18449914.

The product of its digits is 170100, while the sum is 39.

The square root of 55349733 is about 7439.7401164288. The cubic root of 55349733 is about 381.0996150409.

The spelling of 55349733 in words is "fifty-five million, three hundred forty-nine thousand, seven hundred thirty-three".

Divisors: 1 3 18449911 55349733