Search a number
-
+
49885969 = 7210092
BaseRepresentation
bin1011111001001…
…1001100010001
310110212110200111
42332103030101
5100232322334
64541121321
71144011100
oct276231421
9113773614
1049885969
1126183081
1214859241
13a448533
1468a8037
1545a6064
hex2f93311

49885969 has 9 divisors (see below), whose sum is σ = 58088187. Its totient is φ = 42717024.

The previous prime is 49885961. The next prime is 49885991. The reversal of 49885969 is 96958894.

The square root of 49885969 is 7063.

It is a perfect power (a square), and thus also a powerful number.

49885969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15311569 + 34574400 = 3913^2 + 5880^2 .

It is not a de Polignac number, because 49885969 - 23 = 49885961 is a prime.

It is a super-2 number, since 2×498859692 = 4977219806137922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49885961) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 48937 + ... + 49945.

It is an arithmetic number, because the mean of its divisors is an integer number (6454243).

Almost surely, 249885969 is an apocalyptic number.

49885969 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49885969 is the 7063-rd square number.

49885969 is the 3532-nd centered octagonal number.

It is an amenable number.

49885969 is a deficient number, since it is larger than the sum of its proper divisors (8202218).

49885969 is an frugal number, since it uses more digits than its factorization.

49885969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 1016 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 58.

The cubic root of 49885969 is about 368.1228741579.

The spelling of 49885969 in words is "forty-nine million, eight hundred eighty-five thousand, nine hundred sixty-nine".

Divisors: 1 7 49 1009 7063 49441 1018081 7126567 49885969