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142306558 = 2171372223
BaseRepresentation
bin10000111101101…
…10110011111110
3100220202220220021
420132312303332
5242412302213
622042042354
73345404632
oct1036666376
9326686807
10142306558
1173368029
123b7a93ba
1323637184
1414c84dc2
15c75ed8d
hex87b6cfe

142306558 has 24 divisors (see below), whose sum is σ = 228699072. Its totient is φ = 66180864.

The previous prime is 142306529. The next prime is 142306559. The reversal of 142306558 is 855603241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142306559) 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, 638035 + ... + 638257.

It is an arithmetic number, because the mean of its divisors is an integer number (9529128).

Almost surely, 2142306558 is an apocalyptic number.

142306558 is a deficient number, since it is larger than the sum of its proper divisors (86392514).

142306558 is a wasteful number, since it uses less digits than its factorization.

142306558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 142306558 is about 11929.2312409476. The cubic root of 142306558 is about 522.0855078334.

Adding to 142306558 its reverse (855603241), we get a palindrome (997909799).

The spelling of 142306558 in words is "one hundred forty-two million, three hundred six thousand, five hundred fifty-eight".

Divisors: 1 2 17 34 137 223 274 446 2329 3791 4658 7582 18769 30551 37538 61102 319073 519367 638146 1038734 4185487 8370974 71153279 142306558