Search a number
-
+
83670141 = 3178291979
BaseRepresentation
bin1001111110010…
…11010001111101
312211102212212010
410333023101331
5132404421031
612145201433
72034120162
oct477132175
9184385763
1083670141
1143258685
1224030279
1314446a79
14b180069
15752b246
hex4fcb47d

83670141 has 16 divisors (see below), whose sum is σ = 118324800. Its totient is φ = 52409088.

The previous prime is 83670137. The next prime is 83670143. The reversal of 83670141 is 14107638.

It is a happy number.

It is not a de Polignac number, because 83670141 - 22 = 83670137 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 83670099 and 83670108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83670143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41290 + ... + 43268.

It is an arithmetic number, because the mean of its divisors is an integer number (7395300).

Almost surely, 283670141 is an apocalyptic number.

It is an amenable number.

83670141 is a deficient number, since it is larger than the sum of its proper divisors (34654659).

83670141 is a wasteful number, since it uses less digits than its factorization.

83670141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 83670141 is about 9147.1384049876. The cubic root of 83670141 is about 437.3778985518.

Adding to 83670141 its reverse (14107638), we get a palindrome (97777779).

The spelling of 83670141 in words is "eighty-three million, six hundred seventy thousand, one hundred forty-one".

Divisors: 1 3 17 51 829 1979 2487 5937 14093 33643 42279 100929 1640591 4921773 27890047 83670141