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55444105 = 511088821
BaseRepresentation
bin1101001110000…
…0001010001001
310212022212000101
43103200022021
5103143202410
65300205401
71242160423
oct323401211
9125285011
1055444105
1129329a82
1216699861
13b643382
147513813
154d02d3a
hex34e0289

55444105 has 4 divisors (see below), whose sum is σ = 66532932. Its totient is φ = 44355280.

The previous prime is 55444091. The next prime is 55444111. The reversal of 55444105 is 50144455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50144455 = 510028891.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 39476089 = 3996^2 + 6283^2 .

It is not a de Polignac number, because 55444105 - 25 = 55444073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5544406 + ... + 5544415.

It is an arithmetic number, because the mean of its divisors is an integer number (16633233).

Almost surely, 255444105 is an apocalyptic number.

It is an amenable number.

55444105 is a deficient number, since it is larger than the sum of its proper divisors (11088827).

55444105 is a wasteful number, since it uses less digits than its factorization.

55444105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088826.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 55444105 is about 7446.0798410976. The cubic root of 55444105 is about 381.3160852924.

The spelling of 55444105 in words is "fifty-five million, four hundred forty-four thousand, one hundred five".

Divisors: 1 5 11088821 55444105