Search a number
-
+
82158141 = 3132106619
BaseRepresentation
bin1001110010110…
…10001000111101
312201121001210010
410321122020331
5132013030031
612052533433
72015222052
oct471321075
9181531703
1082158141
114241569a
1223621279
13140377b0
14aca9029
15732d246
hex4e5a23d

82158141 has 8 divisors (see below), whose sum is σ = 117970720. Its totient is φ = 50558832.

The previous prime is 82158121. The next prime is 82158143. The reversal of 82158141 is 14185128.

It is a happy number.

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

It is not a de Polignac number, because 82158141 - 211 = 82156093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82158099 and 82158108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82158143) 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, 1053271 + ... + 1053348.

It is an arithmetic number, because the mean of its divisors is an integer number (14746340).

Almost surely, 282158141 is an apocalyptic number.

It is an amenable number.

82158141 is a deficient number, since it is larger than the sum of its proper divisors (35812579).

82158141 is a wasteful number, since it uses less digits than its factorization.

82158141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106635.

The product of its digits is 2560, while the sum is 30.

The square root of 82158141 is about 9064.1128082124. The cubic root of 82158141 is about 434.7272540466.

The spelling of 82158141 in words is "eighty-two million, one hundred fifty-eight thousand, one hundred forty-one".

Divisors: 1 3 13 39 2106619 6319857 27386047 82158141