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20160155055 = 356481207377
BaseRepresentation
bin10010110001101000…
…111000110110101111
31221000222212222200110
4102301220320312233
5312241444430210
613132250031103
71312405330155
oct226150706657
957028788613
1020160155055
118605977977
123aa7718493
131b93920b41
14d936953d5
157ced54420
hex4b1a38daf

20160155055 has 16 divisors (see below), whose sum is σ = 32261380704. Its totient is φ = 10750371840.

The previous prime is 20160155039. The next prime is 20160155107. The reversal of 20160155055 is 55055106102.

It is not a de Polignac number, because 20160155055 - 24 = 20160155039 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6474 + ... + 200903.

It is an arithmetic number, because the mean of its divisors is an integer number (2016336294).

Almost surely, 220160155055 is an apocalyptic number.

20160155055 is a deficient number, since it is larger than the sum of its proper divisors (12101225649).

20160155055 is a wasteful number, since it uses less digits than its factorization.

20160155055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213866.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 20160155055 in words is "twenty billion, one hundred sixty million, one hundred fifty-five thousand, fifty-five".

Divisors: 1 3 5 15 6481 19443 32405 97215 207377 622131 1036885 3110655 1344010337 4032031011 6720051685 20160155055