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2687042384 = 241312918473
BaseRepresentation
bin1010000000101001…
…0000001101010000
320221021010220012022
42200022100031100
521000340324014
61122344351012
7123405324545
oct24012201520
96837126168
102687042384
111159846794
1262ba75468
1333a8ca910
141b6c1cbcc
1510ad75a8e
hexa0290350

2687042384 has 20 divisors (see below), whose sum is σ = 5606617716. Its totient is φ = 1240173312.

The previous prime is 2687042381. The next prime is 2687042399. The reversal of 2687042384 is 4832407862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1338096400 + 1348945984 = 36580^2 + 36728^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687042381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6459029 + ... + 6459444.

Almost surely, 22687042384 is an apocalyptic number.

It is an amenable number.

2687042384 is an abundant number, since it is smaller than the sum of its proper divisors (2919575332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2687042384 is a wasteful number, since it uses less digits than its factorization.

2687042384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12918494 (or 12918488 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 2687042384 is about 51836.6895547931. The cubic root of 2687042384 is about 1390.2455243187.

The spelling of 2687042384 in words is "two billion, six hundred eighty-seven million, forty-two thousand, three hundred eighty-four".

Divisors: 1 2 4 8 13 16 26 52 104 208 12918473 25836946 51673892 103347784 167940149 206695568 335880298 671760596 1343521192 2687042384