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142353353 = 413472033
BaseRepresentation
bin10000111110000…
…10001111001001
3100220212022002102
420133002033021
5242420301403
622043043145
73345661232
oct1037021711
9326768072
10142353353
117339a1aa
123b8104b5
132365256c
1414c98089
15c76db88
hex87c23c9

142353353 has 4 divisors (see below), whose sum is σ = 145825428. Its totient is φ = 138881280.

The previous prime is 142353331. The next prime is 142353391. The reversal of 142353353 is 353353241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353353241 = 1918597539.

It can be written as a sum of positive squares in 2 ways, for example, as 2096704 + 140256649 = 1448^2 + 11843^2 .

It is a cyclic number.

It is not a de Polignac number, because 142353353 - 212 = 142349257 is a prime.

It is a super-2 number, since 2×1423533532 = 40528954220685218, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142353853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735976 + ... + 1736057.

It is an arithmetic number, because the mean of its divisors is an integer number (36456357).

Almost surely, 2142353353 is an apocalyptic number.

It is an amenable number.

142353353 is a deficient number, since it is larger than the sum of its proper divisors (3472075).

142353353 is an equidigital number, since it uses as much as digits as its factorization.

142353353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472074.

The product of its digits is 16200, while the sum is 29.

The square root of 142353353 is about 11931.1924383106. The cubic root of 142353353 is about 522.1427277636.

The spelling of 142353353 in words is "one hundred forty-two million, three hundred fifty-three thousand, three hundred fifty-three".

Divisors: 1 41 3472033 142353353