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55076431 = 107514733
BaseRepresentation
bin1101001000011…
…0011001001111
310211122011122211
43102012121033
5103044421211
65244251251
71236066454
oct322063117
9124564584
1055076431
11290a8813
1216540b27
13b544c07
14745982b
154c7de21
hex348664f

55076431 has 4 divisors (see below), whose sum is σ = 55591272. Its totient is φ = 54561592.

The previous prime is 55076369. The next prime is 55076443. The reversal of 55076431 is 13467055.

55076431 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 a cyclic number.

It is not a de Polignac number, because 55076431 - 27 = 55076303 is a prime.

It is a super-2 number, since 2×550764312 = 6066826503395522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55076393 and 55076402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55074431) 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, 257260 + ... + 257473.

It is an arithmetic number, because the mean of its divisors is an integer number (13897818).

Almost surely, 255076431 is an apocalyptic number.

55076431 is a deficient number, since it is larger than the sum of its proper divisors (514841).

55076431 is a wasteful number, since it uses less digits than its factorization.

55076431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514840.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55076431 is about 7421.3496750928. The cubic root of 55076431 is about 380.4713242112.

The spelling of 55076431 in words is "fifty-five million, seventy-six thousand, four hundred thirty-one".

Divisors: 1 107 514733 55076431