Search a number
-
+
2688130372 = 221739531329
BaseRepresentation
bin1010000000111001…
…1001110101000100
320221100012011122011
42200032121311010
521001130132442
61122423544004
7123420505534
oct24016316504
96840164564
102688130372
11115a41a154
126302bb004
1333abbbbb5
141b70234c4
1510aedd117
hexa0399d44

2688130372 has 12 divisors (see below), whose sum is σ = 4980947580. Its totient is φ = 1265002496.

The previous prime is 2688130351. The next prime is 2688130381. The reversal of 2688130372 is 2730318862.

It can be written as a sum of positive squares in 2 ways, for example, as 1234538496 + 1453591876 = 35136^2 + 38126^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19765597 + ... + 19765732.

It is an arithmetic number, because the mean of its divisors is an integer number (415078965).

Almost surely, 22688130372 is an apocalyptic number.

It is an amenable number.

2688130372 is a deficient number, since it is larger than the sum of its proper divisors (2292817208).

2688130372 is a wasteful number, since it uses less digits than its factorization.

2688130372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39531350 (or 39531348 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 2688130372 is about 51847.1828742893. The cubic root of 2688130372 is about 1390.4331365865.

The spelling of 2688130372 in words is "two billion, six hundred eighty-eight million, one hundred thirty thousand, three hundred seventy-two".

Divisors: 1 2 4 17 34 68 39531329 79062658 158125316 672032593 1344065186 2688130372