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142585241 = 59240961
BaseRepresentation
bin10000111111110…
…10110110011001
3100221022002011212
420133322312121
5243000211431
622052032505
73350645261
oct1037726631
9327262155
10142585241
1173538447
123b902735
1323703c86
1414d187a1
15c7b772b
hex87fad99

142585241 has 6 divisors (see below), whose sum is σ = 145046442. Its totient is φ = 140165120.

The previous prime is 142585237. The next prime is 142585259.

142585241 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 3345241 = 11800^2 + 1829^2 .

It is not a de Polignac number, because 142585241 - 22 = 142585237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142585198 and 142585207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142585271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17000 + ... + 23961.

It is an arithmetic number, because the mean of its divisors is an integer number (24174407).

Almost surely, 2142585241 is an apocalyptic number.

It is an amenable number.

142585241 is a deficient number, since it is larger than the sum of its proper divisors (2461201).

142585241 is an frugal number, since it uses more digits than its factorization.

142585241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41079 (or 41020 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 142585241 is about 11940.9062051421. The cubic root of 142585241 is about 522.4260905966.

The spelling of 142585241 in words is "one hundred forty-two million, five hundred eighty-five thousand, two hundred forty-one".

Divisors: 1 59 3481 40961 2416699 142585241