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142303113 = 3231510047
BaseRepresentation
bin10000111101101…
…01111110001001
3100220202202011200
420132311332021
5242412144423
622042014413
73345361611
oct1036657611
9326682150
10142303113
1173365487
123b7a7409
1323635734
1414c83a41
15c75dd43
hex87b5f89

142303113 has 12 divisors (see below), whose sum is σ = 212179968. Its totient is φ = 91808280.

The previous prime is 142303111. The next prime is 142303123. The reversal of 142303113 is 311303241.

It is not a de Polignac number, because 142303113 - 21 = 142303111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142303111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254745 + ... + 255302.

It is an arithmetic number, because the mean of its divisors is an integer number (17681664).

Almost surely, 2142303113 is an apocalyptic number.

It is an amenable number.

142303113 is a deficient number, since it is larger than the sum of its proper divisors (69876855).

142303113 is a wasteful number, since it uses less digits than its factorization.

142303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510084 (or 510081 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 142303113 is about 11929.0868468630. The cubic root of 142303113 is about 522.0812948650.

Adding to 142303113 its reverse (311303241), we get a palindrome (453606354).

The spelling of 142303113 in words is "one hundred forty-two million, three hundred three thousand, one hundred thirteen".

Divisors: 1 3 9 31 93 279 510047 1530141 4590423 15811457 47434371 142303113