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142181241 = 3831573637
BaseRepresentation
bin10000111100110…
…00001101111001
3100220112112222220
420132120031321
5242344244431
622035234253
73344343366
oct1036301571
9326475886
10142181241
1173291964
123b748989
13235c2117
1414c5146d
15c737b96
hex8798379

142181241 has 16 divisors (see below), whose sum is σ = 193134144. Its totient is φ = 93023424.

The previous prime is 142181231. The next prime is 142181257.

142181241 is nontrivially palindromic in base 10.

142181241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142181241 - 29 = 142180729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142181231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37275 + ... + 40911.

It is an arithmetic number, because the mean of its divisors is an integer number (12070884).

Almost surely, 2142181241 is an apocalyptic number.

It is an amenable number.

142181241 is a deficient number, since it is larger than the sum of its proper divisors (50952903).

142181241 is a wasteful number, since it uses less digits than its factorization.

142181241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880.

The product of its digits is 512, while the sum is 24.

The square root of 142181241 is about 11923.9775662318. The cubic root of 142181241 is about 521.9322110705.

The spelling of 142181241 in words is "one hundred forty-two million, one hundred eighty-one thousand, two hundred forty-one".

Divisors: 1 3 83 157 249 471 3637 10911 13031 39093 301871 571009 905613 1713027 47393747 142181241