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55414445 = 513780897
BaseRepresentation
bin1101001101100…
…0111010101101
310212021100022212
43103120322231
5103141230240
65255420205
71242005102
oct323307255
9125240285
1055414445
1129309769
1216684665
13b632a18
147506aa9
154ce9165
hex34d8ead

55414445 has 8 divisors (see below), whose sum is σ = 66983544. Its totient is φ = 44007424.

The previous prime is 55414439. The next prime is 55414483. The reversal of 55414445 is 54441455.

It can be written as a sum of positive squares in 4 ways, for example, as 17825284 + 37589161 = 4222^2 + 6131^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55414445 - 28 = 55414189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39764 + ... + 41133.

It is an arithmetic number, because the mean of its divisors is an integer number (8372943).

Almost surely, 255414445 is an apocalyptic number.

It is an amenable number.

55414445 is a deficient number, since it is larger than the sum of its proper divisors (11569099).

55414445 is a wasteful number, since it uses less digits than its factorization.

55414445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81039.

The product of its digits is 32000, while the sum is 32.

The square root of 55414445 is about 7444.0879226404. The cubic root of 55414445 is about 381.2480777472.

The spelling of 55414445 in words is "fifty-five million, four hundred fourteen thousand, four hundred forty-five".

Divisors: 1 5 137 685 80897 404485 11082889 55414445