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2018281850413 = 17739059179527
BaseRepresentation
bin11101010111101010111…
…110010000011000101101
321010221112112101002001221
4131113222332100120231
5231031420123203123
64143104052303341
7265546622445343
oct35275276203055
97127475332057
102018281850413
11708a48540674
122871a6611b51
13118427ca963a
146d9848c7993
1537777eac25d
hex1d5eaf9062d

2018281850413 has 16 divisors (see below), whose sum is σ = 2166529541760. Its totient is φ = 1873320777216.

The previous prime is 2018281850401. The next prime is 2018281850441. The reversal of 2018281850413 is 3140581828102.

It is a cyclic number.

It is not a de Polignac number, because 2018281850413 - 25 = 2018281850381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2018281850413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018281850113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11152456 + ... + 11331982.

It is an arithmetic number, because the mean of its divisors is an integer number (135408096360).

Almost surely, 22018281850413 is an apocalyptic number.

It is an amenable number.

2018281850413 is a deficient number, since it is larger than the sum of its proper divisors (148247691347).

2018281850413 is a wasteful number, since it uses less digits than its factorization.

2018281850413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188676.

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 2018281850413 in words is "two trillion, eighteen billion, two hundred eighty-one million, eight hundred fifty thousand, four hundred thirteen".

Divisors: 1 17 73 1241 9059 154003 179527 661307 3051959 11242219 13105471 222793007 1626335093 27647696581 118722461789 2018281850413