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3123305055 = 335132136897
BaseRepresentation
bin1011101000101001…
…1101101001011111
322001200001100002000
42322022131221133
522344031230210
61233531133343
7140253440433
oct27212355137
98050040060
103123305055
11136302a352
12731ba4253
133aa0c7900
14218b429c3
151342edac0
hexba29da5f

3123305055 has 48 divisors (see below), whose sum is σ = 6012560160. Its totient is φ = 1537615872.

The previous prime is 3123305051. The next prime is 3123305099. The reversal of 3123305055 is 5505033213.

3123305055 is a `hidden beast` number, since 3 + 123 + 30 + 505 + 5 = 666.

It is not a de Polignac number, because 3123305055 - 22 = 3123305051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123305051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45634 + ... + 91263.

It is an arithmetic number, because the mean of its divisors is an integer number (125261670).

Almost surely, 23123305055 is an apocalyptic number.

3123305055 is a deficient number, since it is larger than the sum of its proper divisors (2889255105).

3123305055 is a wasteful number, since it uses less digits than its factorization.

3123305055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136937 (or 136918 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 3123305055 is about 55886.5373323487. The cubic root of 3123305055 is about 1461.7444986776.

Adding to 3123305055 its reverse (5505033213), we get a palindrome (8628338268).

The spelling of 3123305055 in words is "three billion, one hundred twenty-three million, three hundred five thousand, fifty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 117 135 169 195 351 507 585 845 1521 1755 2535 4563 7605 22815 136897 410691 684485 1232073 1779661 2053455 3696219 5338983 6160365 8898305 16016949 18481095 23135593 26694915 48050847 69406779 80084745 115677965 208220337 240254235 347033895 624661011 1041101685 3123305055