Search a number
-
+
939641485 = 51924112697
BaseRepresentation
bin111000000000011…
…100101010001101
32102111002201210111
4320000130222031
53411022011420
6233123440021
732166551356
oct7000345215
92374081714
10939641485
11442448612
12222826011
1311c895ca3
148cb18d2d
155775c45a
hex3801ca8d

939641485 has 24 divisors (see below), whose sum is σ = 1219160376. Its totient is φ = 694725120.

The previous prime is 939641449. The next prime is 939641491. The reversal of 939641485 is 584146939.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13169641 + 926471844 = 3629^2 + 30438^2 .

It is not a de Polignac number, because 939641485 - 213 = 939633293 is a prime.

It is a super-2 number, since 2×9396414852 = 1765852240666010450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67657 + ... + 80353.

It is an arithmetic number, because the mean of its divisors is an integer number (50798349).

Almost surely, 2939641485 is an apocalyptic number.

939641485 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

939641485 is a deficient number, since it is larger than the sum of its proper divisors (279518891).

939641485 is a wasteful number, since it uses less digits than its factorization.

939641485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781 (or 12762 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 939641485 is about 30653.5721409431. The cubic root of 939641485 is about 979.4615551794.

The spelling of 939641485 in words is "nine hundred thirty-nine million, six hundred forty-one thousand, four hundred eighty-five".

Divisors: 1 5 19 41 95 205 361 779 1805 3895 12697 14801 63485 74005 241243 520577 1206215 2602885 4583617 9890963 22918085 49454815 187928297 939641485