Search a number
-
+
6904078220 = 2251326554147
BaseRepresentation
bin1100110111000001…
…11101111110001100
3122211011020111211202
412123200331332030
5103114421000340
63101030205032
7333042460634
oct63340757614
918734214752
106904078220
112a23199176
1214081b3778
1386048c7b0
14496d0b6c4
152a61bcc15
hex19b83df8c

6904078220 has 24 divisors (see below), whose sum is σ = 15613839024. Its totient is φ = 2549198016.

The previous prime is 6904078219. The next prime is 6904078253. The reversal of 6904078220 is 228704096.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13276814 + ... + 13277333.

It is an arithmetic number, because the mean of its divisors is an integer number (650576626).

Almost surely, 26904078220 is an apocalyptic number.

It is an amenable number.

6904078220 is an abundant number, since it is smaller than the sum of its proper divisors (8709760804).

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

6904078220 is a wasteful number, since it uses less digits than its factorization.

6904078220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26554169 (or 26554167 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 6904078220 is about 83090.7830026893. The cubic root of 6904078220 is about 1904.1532618402.

The spelling of 6904078220 in words is "six billion, nine hundred four million, seventy-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 26554147 53108294 106216588 132770735 265541470 345203911 531082940 690407822 1380815644 1726019555 3452039110 6904078220