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82144051 = 1117439273
BaseRepresentation
bin1001110010101…
…10101100110011
312201120100110021
410321112230303
5132012102201
612052344311
72015133013
oct471265463
9181510407
1082144051
1142406050
1223615097
1314031262
14aca3c43
157328ea1
hex4e56b33

82144051 has 8 divisors (see below), whose sum is σ = 94883184. Its totient is φ = 70283520.

The previous prime is 82144039. The next prime is 82144067. The reversal of 82144051 is 15044128.

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

It is a cyclic number.

It is not a de Polignac number, because 82144051 - 25 = 82144019 is a prime.

It is a super-2 number, since 2×821440512 = 13495290229381202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82144651) 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, 219450 + ... + 219823.

It is an arithmetic number, because the mean of its divisors is an integer number (11860398).

Almost surely, 282144051 is an apocalyptic number.

82144051 is a deficient number, since it is larger than the sum of its proper divisors (12739133).

82144051 is a wasteful number, since it uses less digits than its factorization.

82144051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439301.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 82144051 is about 9063.3355338970. The cubic root of 82144051 is about 434.7024009315.

Adding to 82144051 its reverse (15044128), we get a palindrome (97188179).

The spelling of 82144051 in words is "eighty-two million, one hundred forty-four thousand, fifty-one".

Divisors: 1 11 17 187 439273 4832003 7467641 82144051