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55123156106 = 2312078942767
BaseRepresentation
bin110011010101100110…
…001001110010001010
312021021121221110121022
4303111212021302022
51400343011443411
641153452312442
73661001044634
oct632546116212
9167247843538
1055123156106
1121417648067
12a824772722
13527628bc45
14294cccda54
151679526edb
hexcd5989c8a

55123156106 has 16 divisors (see below), whose sum is σ = 85358085120. Its totient is φ = 26670588240.

The previous prime is 55123156069. The next prime is 55123156139. The reversal of 55123156106 is 60165132155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267535 + ... + 1310301.

It is an arithmetic number, because the mean of its divisors is an integer number (5334880320).

Almost surely, 255123156106 is an apocalyptic number.

55123156106 is a deficient number, since it is larger than the sum of its proper divisors (30234929014).

55123156106 is a wasteful number, since it uses less digits than its factorization.

55123156106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63589.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 55123156106 in words is "fifty-five billion, one hundred twenty-three million, one hundred fifty-six thousand, one hundred six".

Divisors: 1 2 31 62 20789 41578 42767 85534 644459 1288918 1325777 2651554 889083163 1778166326 27561578053 55123156106