Search a number
-
+
83242185 = 35131572719
BaseRepresentation
bin1001111011000…
…10110011001001
312210122010210220
410331202303021
5132302222220
612132100253
72030355405
oct475426311
9183563726
1083242185
1142a960a4
1223a64689
1314327040
14b0ac105
157494540
hex4f62cc9

83242185 has 32 divisors (see below), whose sum is σ = 144399360. Its totient is φ = 40704768.

The previous prime is 83242163. The next prime is 83242189. The reversal of 83242185 is 58124238.

It is not a de Polignac number, because 83242185 - 26 = 83242121 is a prime.

It is a super-2 number, since 2×832421852 = 13858522727148450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83242189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29256 + ... + 31974.

It is an arithmetic number, because the mean of its divisors is an integer number (4512480).

Almost surely, 283242185 is an apocalyptic number.

It is an amenable number.

83242185 is a deficient number, since it is larger than the sum of its proper divisors (61157175).

83242185 is a wasteful number, since it uses less digits than its factorization.

83242185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897.

The product of its digits is 15360, while the sum is 33.

The square root of 83242185 is about 9123.7155260343. The cubic root of 83242185 is about 436.6309234643.

The spelling of 83242185 in words is "eighty-three million, two hundred forty-two thousand, one hundred eighty-five".

Divisors: 1 3 5 13 15 39 65 157 195 471 785 2041 2355 2719 6123 8157 10205 13595 30615 35347 40785 106041 176735 426883 530205 1280649 2134415 5549479 6403245 16648437 27747395 83242185