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55471713 = 3111680961
BaseRepresentation
bin1101001110011…
…0111001100001
310212101020212220
43103212321201
5103200043323
65300541253
71242334053
oct323467141
9125336786
1055471713
11293487a0
12166b1829
13b652acb
14751d8d3
154d0b0e3
hex34e6e61

55471713 has 8 divisors (see below), whose sum is σ = 80686176. Its totient is φ = 33619200.

The previous prime is 55471709. The next prime is 55471723. The reversal of 55471713 is 31717455.

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

It is not a de Polignac number, because 55471713 - 22 = 55471709 is a prime.

It is a super-2 number, since 2×554717132 = 6154221886308738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1680961 = 55471713 / (5 + 5 + 4 + 7 + 1 + 7 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (55471723) 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, 840448 + ... + 840513.

It is an arithmetic number, because the mean of its divisors is an integer number (10085772).

Almost surely, 255471713 is an apocalyptic number.

It is an amenable number.

55471713 is a deficient number, since it is larger than the sum of its proper divisors (25214463).

55471713 is a wasteful number, since it uses less digits than its factorization.

55471713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680975.

The product of its digits is 14700, while the sum is 33.

The square root of 55471713 is about 7447.9334717759. The cubic root of 55471713 is about 381.3793660062.

It can be divided in two parts, 5547 and 1713, that added together give a triangular number (7260 = T120).

The spelling of 55471713 in words is "fifty-five million, four hundred seventy-one thousand, seven hundred thirteen".

Divisors: 1 3 11 33 1680961 5042883 18490571 55471713