Search a number
-
+
69782238 = 23253193379
BaseRepresentation
bin1000010100011…
…00101011011110
311212022022020100
410022030223132
5120331012423
610531401530
71505065521
oct412145336
9155268210
1069782238
1136432479
121b4532a6
13115c3686
1493a6bb8
1561d6343
hex428cade

69782238 has 48 divisors (see below), whose sum is σ = 155254320. Its totient is φ = 22643712.

The previous prime is 69782227. The next prime is 69782257. The reversal of 69782238 is 83228796.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 69782193 and 69782202.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 183933 + ... + 184311.

It is an arithmetic number, because the mean of its divisors is an integer number (3234465).

Almost surely, 269782238 is an apocalyptic number.

69782238 is an abundant number, since it is smaller than the sum of its proper divisors (85472082).

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

69782238 is a wasteful number, since it uses less digits than its factorization.

69782238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 630 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 69782238 is about 8353.5763598593. The cubic root of 69782238 is about 411.7007244702.

It can be divided in two parts, 6978 and 2238, that added together give a square (9216 = 962).

The spelling of 69782238 in words is "sixty-nine million, seven hundred eighty-two thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 53 106 159 193 318 379 386 477 579 758 954 1137 1158 1737 2274 3411 3474 6822 10229 20087 20458 30687 40174 60261 61374 73147 92061 120522 146294 180783 184122 219441 361566 438882 658323 1316646 3876791 7753582 11630373 23260746 34891119 69782238