Search a number
-
+
2807138884 = 221163798611
BaseRepresentation
bin1010011101010001…
…1000101001000100
321020122010102121211
42213110120221010
521222111421014
61142314421204
7126364200244
oct24724305104
97218112554
102807138884
111210613aa0
12664131804
13359759734
141c8b61b24
15116699cc4
hexa7518a44

2807138884 has 12 divisors (see below), whose sum is σ = 5359083408. Its totient is φ = 1275972200.

The previous prime is 2807138863. The next prime is 2807138911. The reversal of 2807138884 is 4888317082.

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, 31899262 + ... + 31899349.

It is an arithmetic number, because the mean of its divisors is an integer number (446590284).

Almost surely, 22807138884 is an apocalyptic number.

It is an amenable number.

2807138884 is a deficient number, since it is larger than the sum of its proper divisors (2551944524).

2807138884 is a wasteful number, since it uses less digits than its factorization.

2807138884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63798626 (or 63798624 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 2807138884 is about 52982.4393926893. The cubic root of 2807138884 is about 1410.6565833638.

The spelling of 2807138884 in words is "two billion, eight hundred seven million, one hundred thirty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 11 22 44 63798611 127597222 255194444 701784721 1403569442 2807138884