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55042305 = 353669487
BaseRepresentation
bin1101000111111…
…0000100000001
310211120102211220
43101332010001
5103042323210
65243425253
71235565123
oct321760401
9124512756
1055042305
112908510a
1216525229
13b532516
14744b213
154c73c70
hex347e101

55042305 has 8 divisors (see below), whose sum is σ = 88067712. Its totient is φ = 29355888.

The previous prime is 55042283. The next prime is 55042327. The reversal of 55042305 is 50324055.

It is an interprime number because it is at equal distance from previous prime (55042283) and next prime (55042327).

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

It is not a de Polignac number, because 55042305 - 26 = 55042241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834729 + ... + 1834758.

It is an arithmetic number, because the mean of its divisors is an integer number (11008464).

Almost surely, 255042305 is an apocalyptic number.

It is an amenable number.

55042305 is a deficient number, since it is larger than the sum of its proper divisors (33025407).

55042305 is a wasteful number, since it uses less digits than its factorization.

55042305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669495.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 55042305 is about 7419.0501413591. The cubic root of 55042305 is about 380.3927264833.

The spelling of 55042305 in words is "fifty-five million, forty-two thousand, three hundred five".

Divisors: 1 3 5 15 3669487 11008461 18347435 55042305