Search a number
-
+
89430236 = 2273193937
BaseRepresentation
bin1010101010010…
…01100011011100
320020021112012222
411111021203130
5140343231421
612512444512
72134100360
oct525114334
9206245188
1089430236
1146532295
1225b49738
13156b27cc
14bc3d2a0
157cb7cab
hex55498dc

89430236 has 12 divisors (see below), whose sum is σ = 178860528. Its totient is φ = 38327232.

The previous prime is 89430223. The next prime is 89430241. The reversal of 89430236 is 63203498.

It is a happy number.

89430236 is an admirable number.

It is a super-2 number, since 2×894302362 = 15995534222031392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89430196 and 89430205.

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 3 ways as a sum of consecutive naturals, for example, 1596941 + ... + 1596996.

It is an arithmetic number, because the mean of its divisors is an integer number (14905044).

Almost surely, 289430236 is an apocalyptic number.

It is an amenable number.

89430236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

89430236 is a wasteful number, since it uses less digits than its factorization.

89430236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193948 (or 3193946 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 89430236 is about 9456.7561034427. The cubic root of 89430236 is about 447.1927893653.

The spelling of 89430236 in words is "eighty-nine million, four hundred thirty thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 3193937 6387874 12775748 22357559 44715118 89430236