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55936047 = 318645349
BaseRepresentation
bin1101010101100…
…0010000101111
310220020211211110
43111120100233
5103304423142
65314523103
71246306566
oct325302057
9126224743
1055936047
1129635642
1216896493
13b78626b
147600bdd
154d9d99c
hex355842f

55936047 has 4 divisors (see below), whose sum is σ = 74581400. Its totient is φ = 37290696.

The previous prime is 55936039. The next prime is 55936061. The reversal of 55936047 is 74063955.

55936047 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.

It is not a de Polignac number, because 55936047 - 23 = 55936039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55935996 and 55936014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55936087) 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, 9322672 + ... + 9322677.

It is an arithmetic number, because the mean of its divisors is an integer number (18645350).

Almost surely, 255936047 is an apocalyptic number.

55936047 is a deficient number, since it is larger than the sum of its proper divisors (18645353).

55936047 is a wasteful number, since it uses less digits than its factorization.

55936047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645352.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 55936047 is about 7479.0405133279. The cubic root of 55936047 is about 382.4405409734.

The spelling of 55936047 in words is "fifty-five million, nine hundred thirty-six thousand, forty-seven".

Divisors: 1 3 18645349 55936047