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142302302 = 271151151
BaseRepresentation
bin10000111101101…
…01110001011110
3100220202201001122
420132311301132
5242412133202
622042010542
73345356342
oct1036656136
9326681048
10142302302
117336490a
123b7a6a52
132363525c
1414c83622
15c75d9a2
hex87b5c5e

142302302 has 4 divisors (see below), whose sum is σ = 213453456. Its totient is φ = 71151150.

The previous prime is 142302283. The next prime is 142302319. The reversal of 142302302 is 203203241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203203241 = 1031972847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35575574 + ... + 35575577.

It is an arithmetic number, because the mean of its divisors is an integer number (53363364).

Almost surely, 2142302302 is an apocalyptic number.

142302302 is a deficient number, since it is larger than the sum of its proper divisors (71151154).

142302302 is an equidigital number, since it uses as much as digits as its factorization.

142302302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71151153.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 142302302 is about 11929.0528542714. The cubic root of 142302302 is about 522.0803030649.

Adding to 142302302 its reverse (203203241), we get a palindrome (345505543).

The spelling of 142302302 in words is "one hundred forty-two million, three hundred two thousand, three hundred two".

Divisors: 1 2 71151151 142302302