Search a number
-
+
82741243 = 1335917729
BaseRepresentation
bin1001110111010…
…00011111111011
312202200200122111
410323220133323
5132140204433
612113233151
72023201054
oct473503773
9182620574
1082741243
11427837a2
12238627b7
13141b0020
14adbb72b
1573e5dcd
hex4ee87fb

82741243 has 8 divisors (see below), whose sum is σ = 89359200. Its totient is φ = 76159488.

The previous prime is 82741231. The next prime is 82741249. The reversal of 82741243 is 34214728.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82741243 is a prime.

It is a super-2 number, since 2×827412432 = 13692226586370098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82741249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (11169900).

Almost surely, 282741243 is an apocalyptic number.

82741243 is a deficient number, since it is larger than the sum of its proper divisors (6617957).

82741243 is a wasteful number, since it uses less digits than its factorization.

82741243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18101.

The product of its digits is 10752, while the sum is 31.

The square root of 82741243 is about 9096.2213583444. The cubic root of 82741243 is about 435.7532955386.

The spelling of 82741243 in words is "eighty-two million, seven hundred forty-one thousand, two hundred forty-three".

Divisors: 1 13 359 4667 17729 230477 6364711 82741243