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2016212687 = 6123311637
BaseRepresentation
bin111100000101100…
…1111011011001111
312012111212012211222
41320023033123033
513112122301222
6532022233555
7100651345046
oct17013173317
95174765758
102016212687
11945110485
124832858bb
13261932978
14151ab955d
15bc016542
hex782cf6cf

2016212687 has 12 divisors (see below), whose sum is σ = 2057255928. Its totient is φ = 1975960800.

The previous prime is 2016212669. The next prime is 2016212707. The reversal of 2016212687 is 7862126102.

It is not a de Polignac number, because 2016212687 - 28 = 2016212431 is a prime.

It is a super-2 number, since 2×20162126872 = 8130227198439519938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016212657) 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 11 ways as a sum of consecutive naturals, for example, 1230833 + ... + 1232469.

It is an arithmetic number, because the mean of its divisors is an integer number (171437994).

Almost surely, 22016212687 is an apocalyptic number.

2016212687 is a deficient number, since it is larger than the sum of its proper divisors (41043241).

2016212687 is an equidigital number, since it uses as much as digits as its factorization.

2016212687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2016212687 is about 44902.2570368127. The cubic root of 2016212687 is about 1263.3163428227.

Adding to 2016212687 its reverse (7862126102), we get a palindrome (9878338789).

The spelling of 2016212687 in words is "two billion, sixteen million, two hundred twelve thousand, six hundred eighty-seven".

Divisors: 1 61 331 1637 3721 20191 99857 541847 1231651 6091277 33052667 2016212687