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55046311 = 283719403
BaseRepresentation
bin1101000111111…
…1000010100111
310211120122100021
43101333002213
5103042440221
65243500011
71235612605
oct321770247
9124518307
1055046311
1129088121
1216527607
13b5342a8
14744c875
154c75041
hex347f0a7

55046311 has 4 divisors (see below), whose sum is σ = 55068552. Its totient is φ = 55024072.

The previous prime is 55046309. The next prime is 55046317. The reversal of 55046311 is 11364055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11364055 = 52272811.

It is a cyclic number.

It is not a de Polignac number, because 55046311 - 21 = 55046309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55046317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865 + ... + 12538.

It is an arithmetic number, because the mean of its divisors is an integer number (13767138).

Almost surely, 255046311 is an apocalyptic number.

55046311 is a deficient number, since it is larger than the sum of its proper divisors (22241).

55046311 is a wasteful number, since it uses less digits than its factorization.

55046311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22240.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55046311 is about 7419.3201170997. The cubic root of 55046311 is about 380.4019546354.

The spelling of 55046311 in words is "fifty-five million, forty-six thousand, three hundred eleven".

Divisors: 1 2837 19403 55046311