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55022305 = 5136113877
BaseRepresentation
bin1101000111100…
…1001011100001
310211112102102011
43101321023201
5103041203210
65243152521
71235452612
oct321711341
9124472364
1055022305
1129071088
1216515741
13b5263a0
147443c09
154c6cd8a
hex34792e1

55022305 has 16 divisors (see below), whose sum is σ = 72276624. Its totient is φ = 39962880.

The previous prime is 55022269. The next prime is 55022311. The reversal of 55022305 is 50322055.

55022305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 29550096 + 25472209 = 5436^2 + 5047^2 .

It is a de Polignac number, because none of the positive numbers 2k-55022305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2974 + ... + 10903.

It is an arithmetic number, because the mean of its divisors is an integer number (4517289).

Almost surely, 255022305 is an apocalyptic number.

It is an amenable number.

55022305 is a deficient number, since it is larger than the sum of its proper divisors (17254319).

55022305 is a wasteful number, since it uses less digits than its factorization.

55022305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 55022305 is about 7417.7021374547. The cubic root of 55022305 is about 380.3466481310.

The spelling of 55022305 in words is "fifty-five million, twenty-two thousand, three hundred five".

Divisors: 1 5 13 61 65 305 793 3965 13877 69385 180401 846497 902005 4232485 11004461 55022305