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55001426271 = 3111987721573
BaseRepresentation
bin110011001110010101…
…110010100101011111
312020222010212221122220
4303032111302211133
51400120331120041
641133423240423
73654662260311
oct631625624537
9166863787586
1055001426271
11213649646a0
12a7aba49113
135256caa85c
14293aa837b1
15166d9cdd66
hexcce57295f

55001426271 has 16 divisors (see below), whose sum is σ = 84212711040. Its totient is φ = 31579765920.

The previous prime is 55001426239. The next prime is 55001426297. The reversal of 55001426271 is 17262410055.

It is not a de Polignac number, because 55001426271 - 25 = 55001426239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55001426771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43860160 + ... + 43861413.

It is an arithmetic number, because the mean of its divisors is an integer number (5263294440).

Almost surely, 255001426271 is an apocalyptic number.

55001426271 is a deficient number, since it is larger than the sum of its proper divisors (29211284769).

55001426271 is a wasteful number, since it uses less digits than its factorization.

55001426271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87721606.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 55001426271 in words is "fifty-five billion, one million, four hundred twenty-six thousand, two hundred seventy-one".

Divisors: 1 3 11 19 33 57 209 627 87721573 263164719 964937303 1666709887 2894811909 5000129661 18333808757 55001426271