Search a number
-
+
83642241 = 3101276047
BaseRepresentation
bin1001111110001…
…00011110000001
312211101110120210
410333010132001
5132403022431
612144424333
72033642634
oct477043601
9184343523
1083642241
1143239721
12240180a9
1314437167
14b173c1b
157522d46
hex4fc4781

83642241 has 8 divisors (see below), whose sum is σ = 112627584. Its totient is φ = 55209200.

The previous prime is 83642239. The next prime is 83642243. The reversal of 83642241 is 14224638.

It is an interprime number because it is at equal distance from previous prime (83642239) and next prime (83642243).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83642241 - 21 = 83642239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83642199 and 83642208.

It is not an unprimeable number, because it can be changed into a prime (83642243) 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 7 ways as a sum of consecutive naturals, for example, 137721 + ... + 138326.

It is an arithmetic number, because the mean of its divisors is an integer number (14078448).

Almost surely, 283642241 is an apocalyptic number.

It is an amenable number.

83642241 is a deficient number, since it is larger than the sum of its proper divisors (28985343).

83642241 is a wasteful number, since it uses less digits than its factorization.

83642241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276151.

The product of its digits is 9216, while the sum is 30.

The square root of 83642241 is about 9145.6132107147. The cubic root of 83642241 is about 437.3292782602.

Adding to 83642241 its reverse (14224638), we get a palindrome (97866879).

The spelling of 83642241 in words is "eighty-three million, six hundred forty-two thousand, two hundred forty-one".

Divisors: 1 3 101 303 276047 828141 27880747 83642241