Search a number
-
+
2640030384 = 24355000633
BaseRepresentation
bin1001110101011011…
…1010101010110000
320210222200102212010
42131112322222300
520401321433014
61113545002520
7122264613405
oct23526725260
96728612763
102640030384
1111352569a2
12618183440
13330c4a574
141b08a22ac
15106b8b359
hex9d5baab0

2640030384 has 20 divisors (see below), whose sum is σ = 6820078616. Its totient is φ = 880010112.

The previous prime is 2640030361. The next prime is 2640030397. The reversal of 2640030384 is 4830300462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27500269 + ... + 27500364.

Almost surely, 22640030384 is an apocalyptic number.

2640030384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2640030384 is an abundant number, since it is smaller than the sum of its proper divisors (4180048232).

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

2640030384 is a wasteful number, since it uses less digits than its factorization.

2640030384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55000644 (or 55000638 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2640030384 is about 51381.2259877088. The cubic root of 2640030384 is about 1382.0899481612.

The spelling of 2640030384 in words is "two billion, six hundred forty million, thirty thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 55000633 110001266 165001899 220002532 330003798 440005064 660007596 880010128 1320015192 2640030384